Prosecution Insights
Last updated: October 02, 2026
Application No. 17/972,182

MONITORING TRANSFORMER CONDITIONS IN A POWER DISTRIBUTION SYSTEM

Non-Final OA §101§103
Filed
Oct 24, 2022
Examiner
BOROWSKI, MICHAEL
Art Unit
3624
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
International Business Machines Corporation
OA Round
3 (Non-Final)
28%
Grant Probability
At Risk
3-4
OA Rounds
0m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants only 28% of cases
28%
Career Allowance Rate
8 granted / 29 resolved
-24.4% vs TC avg
Strong +57% interview lift
Without
With
+57.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
33 currently pending
Career history
81
Total Applications
across all art units

Statute-Specific Performance

§101
40.7%
+0.7% vs TC avg
§103
42.3%
+2.3% vs TC avg
§102
11.3%
-28.7% vs TC avg
§112
5.8%
-34.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 29 resolved cases

Office Action

§101 §103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Response to Arguments 2. The Amendment filed on June 9, 2026 has been entered. The examiner acknowledges the amendments to claims 1, 4, 13, 15, 17, 18, 20. Rejections under 35 U.S.C. § 101: The applicant notes a contradiction in the pervious Office Action and argues the rejection of 1-20 is in error. The statement that the amendments disclose a practical application was, in fact, premature, and in error, and those rejections are reinstated. The claims fall short of a solid description of a practical application. The claims need to disclose the practical application without the benefit of knowledge of the contents of the specification. That can be achieved by further amending the independent claims. The Examiner recommends the following: Amend the independent claims to include how the invention performs real-time monitoring, possibly how the monitoring module monitors data for conditions that necessitate taking actions, describe the actions taken, (recommend including how the invention is part of the Smart Grid and the hardware and software reroute power and isolate issues). The idea is to convey as close to real-time monitoring and control as possible. (Note that scheduling in and of itself does not convey a practical application.) Also recommend including the training of the failure rate prediction model, or other models, comparing the output of the invention to actual field data and updating the model based on the differences. Detail on how models are trained and updated helps convey a practical application. Incorporation of dependent claims 10-11 into claim 1 (and similar text to independent claims 13 and 18) that enable each independent claim to describe the practical application should help make the case. Examiner suggests scheduling an interview to solicit feedback on proposed amendments to support achieving the practical application. In the absence of the claims presenting clear indication of a practical application, the rejections under 35 U.S.C. § 101 are rejected. Rejections under 35 U.S.C. § 103: Applicant argues that prior art does not teach or suggest “generating, by the transformer monitoring system, energy loss data representative of a predicted energy loss of the transformer based at least in part on: (i) the sensor data from the one or more sensors, and (ii) network data for the transformer, wherein the network data identifies portions of a power distribution network that depend on the transformer" and "scheduling, by the transformer monitoring system, a replacement of the transformer with a new transformer based on the replacement data." The Examiner notes that Sadeghnia teaches “analyzing the state of power transformers and power quality in grids, and the data processing system to provide a solution for monitoring overload in power transformers and ensure a correct and reliable measurement of the power transformers, [0010], [ ], monitoring the power transformers in real time, and predicting failures before the failures become destructive for the power transformer, providing at least one sensor arranged relative to said power transformer, [0014], The retrieved signal from the sensors may be sent to an external computer before or after providing the noise reduction, [0092], harmonic is the distortion in the waveform of the voltage and current. It is the integral multiple of some reference waves. The harmonic wave [FIG. 3] increases the core and copper loss of the transformer and hence reduces their efficiency, [0094].” By knowing when transformers are overloaded, maintenance can be planned accordingly to take mitigating actions for reducing loss of operating hours, [0022].” The Examiner concludes that the prior art overcomes the applicant’s arguments and the rejections under 35 U.S.C. § 103 will not be withdrawn. Claim Rejections – 35 U.S.C. § 101 35 U.S.C. § 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-20 are rejected under 35 U.S.C. § 101 because the claimed invention is directed to non-statutory subject matter. The claims, 1-20 are directed to a judicial exception (i.e., law of nature, natural phenomenon, abstract idea) without providing significantly more. Step 1 Step 1 of the subject matter eligibility analysis per MPEP § 2106.03, required the claims to be a process, machine, manufacture or a composition of matter. Claims 1-20 are directed to a process (method), machine (system), and product/article of manufacture, which are statutory categories of invention. Step 2A Claims 1-20 are directed to abstract ideas, as explained below. Prong one of the Step 2A analysis requires identifying the specific limitation(s) in the claim under examination that the examiner believes recites an abstract idea, and determining whether the identified limitation(s) falls within at least one of the groupings of abstract ideas of mathematical concepts, mental processes, and certain methods of organizing human activity. Step 2A-Prong 1 The claims recite the following limitations that are directed to abstract ideas, which can be summarized as being directed to a method, the abstract idea, of analyzing transformer monitoring sensor data to generate replacement data informing a decision on the optimal time for replacing a transformer. Claim 1 discloses A method comprising: receiving, associated with a transformer, data during operation of the transformer; (following rules or instructions, observation, evaluation, judgement, opinion) generating, energy loss data representative of a predicted energy loss of the transformer based at least in part on: (i) the sensor data, and (ii) data for the transformer, wherein the data identifies portions of distribution that depend on the transformer (following rules or instructions, observation, evaluation, judgement, opinion), training a failure rate prediction model using failure data, resulting in a trained failure rate prediction model that calculates probability distribution data indicative of a time at which a failure is most likely to occur; (following rules or instructions, observation, evaluation, judgement, opinion), generating, replacement data representative of an optimal time for replacing the transformer based at least in part on: (i) the energy loss data, (ii) the probability distribution data, (iii) specification data for the transformer, and (iv) aging conditions data representative of an operational age of the transformer determined from timeseries temperature data received associated with the transformer: (economic principles and practices calculating costs, following rules or instructions, observation, evaluation, judgement, opinion). and scheduling, a replacement of the transformer with a new transformer based on the replacement data, (following rules or instructions, observation, evaluation, judgement, opinion). Additional limitations employ the method to receive temperature data, top-oil and hot-spot, from the transformer while in operation, (following rules or instructions, observation, evaluation, judgement, opinion - claim 2), generating aging conditions data from heat transfer equations, (following rules or instructions, observation, evaluation, judgement, opinion - claim 3), where replacement data is based on aging conditions data, insulation degradation, (following rules or instructions, observation, evaluation, judgement, opinion - claim 4), generating core energy loss data representing predicted core energy loss of a core of the transformer, (following rules or instructions, observation, evaluation, judgement, opinion - claim 5), where generating core loss data is based on transformer specifications, (following rules or instructions, observation, evaluation, judgement, opinion claim 6), generating winding energy loss data representing predicted loss of the winding structure in the transformer, (following rules or instructions, observation, evaluation, judgement, opinion claim 7), where generating the winding energy loss data is based on received data, (following rules or instructions, observation, evaluation, judgement, opinion – claim 8), where energy loss data is energy loss data is based in part on core energy loss data and winding energy loss data, (following rules or instructions, observation, evaluation, judgement, opinion – claim 9), where the failure rate model comprises a maximum likelihood estimation algorithm to train a Weibull distribution model resulting in the trained failure rate prediction model, (following rules or instructions, observation, evaluation, judgement, opinion – claim 10), where training the Weibull distribution model comprises determining a shape parameter and scale coefficient, (following rules or instructions, observation, evaluation, judgement, opinion – claim 11), where generating the replacement data comprises generating replacement data for the optimal time for replacing a fleet of transformers under budget and cost constraints based on total cost of ownership data for the fleet of transformers containing the one transformer, (following rules or instructions, observation, evaluation, judgement, opinion – claim 12). Each of these claimed limitations employ: organizing human activity in the form of fundamental economic principles and practices based on mitigating risk and calculating costs, following rules or instructions, or performing mental processes including, observation, evaluation, judgement, and opinion. Claims 13-20 recite similar abstract ideas as those identified with respect to claims 1-12. Thus, the concepts set forth in claims 1-20 recite abstract ideas. Step 2A-Prong 2 As per MPEP § 2106.04, while the claims 1-20 recite additional limitations which are hardware or software elements such as a computer, a transformer monitoring system, one or more sensors, a network for the transformer, a power distribution network that depends on the transformer, one or more temperature sensors, a computer program product comprising one or more computer readable storage media, a computer system, a processor set, a data processing system, a network from a remote processing system, a computer system comprising a processor and one or more computer readable storage media, these limitations are not sufficient to qualify as a practical application being recited in the claims along with the abstract ideas since these elements are invoked as tools to apply the instructions of the abstract ideas in a specific technological environment. The mere application of an abstract idea in a particular technological environment and merely limiting the use of an abstract idea to a particular technological field do not integrate an abstract idea into a practical application (MPEP § 2106.05 (f) & (h)). Evaluated individually, the additional elements do not integrate the identified abstract ideas into a practical application. Evaluating the limitations as an ordered combination adds nothing that is not already present when looking at the elements taken individually. The claims do not amount to a “practical application” of the abstract idea because they neither (1) recite any improvements to another technology or technical field; (2) recite any improvements to the functioning of the computer itself; (3) apply the judicial exception with, or by use of, a particular machine; (4) effect a transformation or reduction of a particular article to a different state or thing; (5) provide other meaningful limitations beyond generally linking the use of the judicial exception to a particular technological environment. Accordingly, claims 1-20 are directed to abstract ideas. Step 2B Claims 1-20 do not include additional elements that are sufficient to amount to significantly more than the judicial exception because the additional elements when considered both individually and as an ordered combination, do not amount to significantly more than the abstract idea. The analysis above describes how the claims recite the additional elements beyond those identified above as being directed to an abstract idea, as well as why identified judicial exception(s) are not integrated into a practical application. These findings are hereby incorporated into the analysis of the additional elements when considered both individually and in combination. For the reasons provided in the analysis in Step 2A, Prong 1, evaluated individually, the additional elements do not amount to significantly more than a judicial exception. Thus, taken alone, the additional elements do not amount to significantly more than a judicial exception. Evaluating the claim limitations as an ordered combination adds nothing that is not already present when looking at the elements taken individually. In addition to the factors discussed regarding Step 2A, prong two, there is no indication that the combination of elements improves the functioning of a computer or improves any other technology. Their collective functions merely amount to instructions to implement the identified abstract ideas on a computer. Therefore, since there are no limitations in the claims 1-20 that transform the exception into a patent eligible application such that the claims amount to significantly more than the exception itself, the claims are directed to non-statutory subject matter and are rejected under 35 U.S.C. § 101. Claim Rejections 35 U.S.C. §103 The following is a quotation of 35 U.S.C. § 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1-9, 12-14, 16-20 are rejected under 35 U.S.C. § 103 as being taught by Sadeghnia, (US 20240103098 A1), “Method and Device for Analyzing the State, Condition, and Power Quality of Transformers in Power Grids,” in view of Secic, "Vibro-Acoustic Methods in the Condition Assessment of Power Transformers: A Survey,” IEEE Access, vol. 7, pp. 83915-83931, 2019, in further view of Foros, “Health Index, Risk and Remaining Lifetime Estimation of Power Transformers,” IEEE Transactions on Power Delivery, vol. 35, no. 6., Dec 2020. Regarding Claim 1, Sadeghnia teaches, A computer-implemented method, (a computer implemented method of analyzing the state of power transformers in power grids, [0012]), comprising: receiving, by a transformer monitoring system associated with a transformer, sensor data from one or more sensors during operation of the transformer; (the method is capable of retrieving at least one vibroacoustic signal from at least one sensor, [0025]), generating, by the transformer monitoring system, energy loss data representative of a predicted energy loss of the transformer based at least in part on: (i) the sensor data from the one or more sensors, (the method is capable of detecting unwanted loads which is related to the power transformer and/or indicates and/or predicts which error may occur in the power transformer, [0012]), and (ii) network data for the transformer, (the data processing system comprises means for carrying out one or more acts for analyzing the state of a power transformer in power grids, [0060] wherein the network data identifies portions of a power distribution network that depend on the transformer, (a processing unit configured to process the signals retrieved by said at least one sensor, and provide at least one analyzed information, where the analyzed information is related to the state of the power transformer, [0062], and a user interface may be provided so one or more users, for example the maintenance crew may access the information provided by the processing unit. The users may then be informed about the health of the power transformer and the entire power grids, [0064]. Sadeghnia does not teach, but Secic teaches, training, by the transformer monitoring system, a failure rate prediction model using failure data, resulting in a trained failure rate prediction model that calculates probability distribution data indicative of a time at which a failure of the transformer is most likely to occur; (monitoring solutions to inform about potential failure even before it happens as well as provide ongoing maintenance recommendations, [p.83916], mathematical modelling and system identification followed by the decision-making process based on the selected model, [p.83919]), Sadeghnia does not teach, Foros teaches, generating, by the transformer monitoring system, replacement data representative of an optimal time for replacing the transformer based at least in part on: (i) the energy loss data, (ii) the probability distribution data, (iii) specification data for the transformer, and (iv) aging conditions data representative of an operational age of the transformer determined from timeseries temperature data received from one or more temperature sensors associated with the transformer: (There are typically strong temperature gradients in transformers, and this causes the DP-value to vary within the transformer. For condition monitoring purposes it is desirable to estimate the DP-value at the location in the transformer where the paper degrades fastest, i.e., at the winding temperature hot-spot. For older transformers the hot-spot temperature must be estimated from other temperature measurements such as top oil temperature or ambient temperature. Using the IEC temperature model [23], while for simplicity assuming that the load varies slowly enough that the transformer is approximately in steady state, the hot-spot temperature oil temperature rise above ambient temperature at rated load, H is the hot-spot factor, gr the average winding temperature with K as a load factor and R is the ration of load losses at rated current with no-load losses, [p.2614], and the statistics-based model extrapolates historic scrapping data for several transformers to estimate a transformer end-of-life distribution. By relating the calculated health index of the transformer in question to the statistics for the population of scrapped transformers, the condition-dependent probability of breakdown and remaining life are estimated. Finally, the profitability and optimal timing of maintenance or replacement is analyzed, Foros, [p.2613]), and scheduling, by the transformer monitoring system, a replacement of the transformer with a new transformer based on the replacement data, (the overall flow diagram of the method is shown in Fig. 1. The method consists of three basic models; a winding degradation model, a condition model, and a statistics-based end-of-life model, that together feed a risk model and a maintenance and replacement analysis. The statistics-based model extrapolates historic scrapping data for several transformers to estimate a transformer end-of-life distribution. By relating the calculated health index of the transformer in question to the statistics for the population of scrapped transformers, the condition-dependent probability of breakdown and remaining life are estimated. Finally, the profitability and optimal timing of maintenance or replacement is analyzed, [p.2613]). It would have been obvious before the earliest effective filing date of this application to modify Sadeghnia’s transformer monitoring method with the teachings of Secic in the use of modeling transformer performance with the motivation to provide proactive awareness of the operating condition of the transformer to improved system uptime, reliability and availability of the future smart grid as recited in Secic [p.83916]. The claimed invention is a combination of existing elements and those elements, one of ordinary skill in the art recognizing the anticipated results and resulting benefit of the combined monitoring and predictive modeling. It would also have been obvious before the earliest effective filing date of this application to modify Sadeghnia’s transformer monitoring method with the teachings of Foros in the use of data-driven and statistically based predictors for transformer replacement, with the motivation to postpone replacement of operative transformers to defer cost and enhance profitability, Foros [p.2617]. The claimed invention is a combination of existing elements and those elements, one of ordinary skill in the art recognizing the anticipated results and resulting benefit of monitoring and analysis for profitability. Claims 13, 14, 18 are rejected for reasons corresponding to those provided for Claim 1. In these claims, a computer program product comprising computer readable storage media storing program instructions does not change the rational for the rejections under 35 U.S.C § 103 or the referenced prior art (Sadeghnia teaches a computer-readable storage medium comprising instructions that are executable by a processor of a device [Claim 10]). Regarding Claim 2, Sadeghnia teaches, The computer-implemented method of claim 1, wherein the time series temperature data includes top-oil temperature data and hot-spot temperature data of windings of the transformer, wherein the thermal model is capable of providing temperature information related to the state of the top-oil temperature and/or the hotspot temperature in the power transformer, [0040]). Claims 16, 19 are rejected for reasons corresponding to claim 2. The addition of a computer program product comprising one or more computer readable storage media, and program instructions collectively store on the storage media and executable by a processor does not change the reasons for rejections cited under 35 U.S.C. § 103 or the referenced prior art (Sadeghnia teaches a computer-readable storage medium comprising instructions that are executable by a processor of a device [Claim 10]). Regarding claim 3, Sadeghnia continues to teach, the computer-implemented method of claim 2, wherein the generating of the aging conditions data comprises solving one or more heat transfer equations based on the time-series temperature data to determine the operational age of the transformer, the one or more heat transfer equations modeling a top-oil temperature rise and a hot-spot temperature rise in the windings of the transformer, a method and a detection system for analyzing the state of power transformers in grids. The method and detection system provides a solution for preventing overload in power transformers by given a plurality of information regarding the health of the power transformer, [0073], providing a thermal model based on the one or more load harmonic frequencies, wherein the thermal model is capable of providing temperature information related to the state of the top-oil temperature and/or the hotspot temperature in the power transformer, [0043], the computer program product may provide real time measurement. The computer program product provides one or more sequences of vibroacoustic signals, where each sequence of vibroacoustic signal or signals is to be analyzed, [0069], and the thermal model is a computation or a formula formed as a result of an algorithm that takes some values as input and produces some value as output. The thermal model may be one or more trained model or models based on the input from vibroacoustic signal retrieved by the sensors, [0044], wherein the thermal model is capable of providing temperature information related to the state of the top-oil temperature and/or the hotspot temperature in the power transformer, [0040]). Regarding claim 4, Sadeghnia teaches, the computer-implemented method of claim 3, wherein Sadeghnia does not teach, but Secic teaches the generating of the replacement data, (provide insights into the health condition of the monitored equipment at any moment, or inform about potential failure before it even happens. It can also provide the ongoing maintenance recommendations, [83927]), is further based at least in part on the aging conditions data, While Sadeghnia teaches wherein the aging conditions data accounts for insulation degradation associated with the hotspot temperature over time, (transformer failures are common and costly. There are many causes of failure: insulation failures, design and/or manufacturing errors, oil contamination, overloading, line surge, loose connections, moisture, and other man-made or natural causes, [0004], and the analyzed data frame information may be related or indirectly related to the state of the transformer, such as DC offset, DC load, phase imbalance, top-oil and hot-spot temperatures, loss of life and core saturation, [0108]. It would have been obvious before the earliest effective filing date of this application to modify Sadeghnia’s computer-implemented transformer monitoring system with the teachings of Secic for generating transformer maintenance insight or replacement data as recited in Secic [83927]. One of ordinary skill in the art would recognize the benefit in including the features of Secic, and since the claimed invention is a combination of existing elements, performing the same functions delivering more value from the sensor monitoring systems. Regarding claim 5, Sadeghnia teaches, the computer-implemented method of claim 1, further comprising: generating, by the transformer monitoring system, core energy loss data representative of a predicted core energy loss of a core of the transformer, (the electromagnetic signal is converted into an electromagnetic data, which can be used to specify and/or predict error which may occur in the power transformer. The electromagnetic data may be compared to the amplitude value and said phase angle related to the harmonic frequencies to specify and/or predict error, [0029], The temperature data may be compared to the amplitude value and said phase angle related to the harmonic frequencies and/or the electromagnetic data to indicate and/or predict which error may occur in the power transformer, [0030], The analyzed information may comprise processed data related to amplitude value and the phase angle related to said one or more harmonic frequencies. The analyzed information may also comprise processed data related to electromagnetic data and/or temperature data. The analyzed information indicates and/or predicts which error may occur in the power transformer, [0031], and harmonic is the distortion in the waveform of the voltage and current. It is the integral multiple of some reference waves. The harmonic wave increases the core and copper loss of the transformer and hence reduces their efficiency, [0094]). Regarding claim 6, Sadeghnia teaches, the computer-implemented method of claim 5, wherein the generating of the core energy loss data is based at least in part on the specification data of the transformer, (the analyzed information may comprise processed data related to amplitude value and the phase angle related to said one or more harmonic frequencies. The analyzed information may also comprise processed data related to electromagnetic data and/or temperature data. The analyzed information indicates and/or predicts which error may occur in the power transformer, [0031], and the system may perform a calibration, when initializing the installation, such that the system is ready for use. The system may even be configured to self-calibrate sensors and values used in the system etc. The automatic calibration may be calibrated to a specific power transformer, [0032]). Regarding claim 7, Sadeghnia teaches, the computer-implemented method of claim 5, further comprising: generating, by the transformer monitoring system, winding energy loss data representative of a predicted winding energy loss of a winding structure of the transformer, (the analyzed information may also comprise processed data related to electromagnetic data and/or temperature data. The analyzed information indicates and/or predicts which error may occur in the power transformer, [0031], and harmonic is the distortion in the waveform of the voltage and current. It is the integral multiple of some reference waves. The harmonic wave increases the core and copper loss of the transformer and hence reduces their efficiency, [0094]). Regarding claim 8, Sadeghnia teaches, the computer-implemented method of claim 7, wherein the generating of the winding energy loss data is based at least in part on the sensor data from the one or more sensors, (FIG. 2: Illustration of measurement when attaching sensors relative to the power transformer 1, [0090]; the retrieved signal from the sensors 7, 8, 9 may be sent to an external computer before or after providing the noise reduction, [0092]; FIG. 3: A simplified block diagram illustrating a signal analyzing process. The vital part of the method for analyzing the state of power transformers in power grids is highlighted using dotted line, and the harmonic is the distortion in the waveform of the voltage and current. It is the integral multiple of some reference waves. The harmonic wave increases the core and copper loss of the transformer and hence reduces their efficiency, [0094]). Regarding claim 9, Sadeghnia teaches, the computer-implemented method of claim 7, wherein the generating of the energy loss data is further based at least in part on the core energy loss data and the winding energy loss data, (the harmonic wave increases the core and copper loss of the transformer and hence reduces their efficiency, [0094]). Regarding claim 12, Sadeghnia teaches, the computer-implemented method of claim 1, but Sadeghnia does not teach, Foros teaches, wherein the generating of the replacement data comprises generating replacement data representative of optimal times for replacing a fleet of transformers under budget and operational constraints based at least in part on total cost of ownership data for the fleet of transformers, the fleet of transformers comprising said transformer, (the estimated winding degradation, health index and failure probability together provide a good basis for assessing whether the transformer needs maintenance or replacement and when it should be done. A technical-economic cost-benefit model is proposed here, enabling a systematic way to carry out such assessments, [ ], the model can be used to estimate the optimal timing of measures. Foros, [p.2617]; The benefit of maintenance and replacement is given in terms of the resulting improvement of the transformer condition. This reduces the probability of failure and may also give reduced operational and maintenance costs. In case of replacement, the new condition becomes as new. [ ] From this, the health index and thus the apparent age and failure probability after the maintenance or replacement is calculated using the models in the above sections, [p2617]; costs are calculated for each year by spreading them equally throughout the lifetime of the transformer or measure, respectively, and then summing up over the analysis period. Also, these terms are adjusted for the annual probability of failure Pn given in the previous section. The profitability of a measure is finally calculated as the difference between the total costs in the analysis period with and without implementing the measure during the period, [p.2617]; and the results are shown in a risk plot for the transformers in Fig. 4. This illustrates that the model is well suited for comparing transformers in a population and for identifying high-risk transformers. Sadeghnia and Foros are both considered to be analogous to the claimed invention because both are in the field of power transformer analysis. It would have been obvious to one of ordinary skill in the art before the effective filing date to combine the transformer data collection and analysis techniques of Sadeghnia with the overall cost-benefit analysis of Foros to provide key decision support for transformer managers, enabling them to identify transformers in poor condition, and to follow-up and prioritize transformers for maintenance and replacement, Foros, [Abstract]. Claims 17, 20 are rejected for reasons corresponding to those provided for Claim 12. In these claims, a computer program product comprising computer readable storage media storing program instructions (claim 12) and a computer system comprising a processor and one or more computer readable storage media, storing program instructions (claim 20), does not change the rational for the rejections under 35 U.S.C § 103 or the referenced prior art (Sadeghnia teaches a computer-readable storage medium comprising instructions that are executable by a processor of a device [Claim 10]). Claims 10-11 are rejected under 35 U.S.C. § 103 as being taught by Sadeghnia, (US 20240103098 A1), hereafter Sadeghnia, (US20240103098A1), “Method and Device for Analyzing the State, Condition, and Power Quality of Transformers in Power Grids,” in view of Secic, "Vibro-Acoustic Methods in the Condition Assessment of Power Transformers: A Survey,” IEEE Access, vol. 7, pp. 83915-83931, 2019, in further view of Foros, “Health Index, Risk and Remaining Lifetime Estimation of Power Transformers,” IEEE Transactions on Power Delivery, vol. 35, no. 6., Dec 2020, and in view of Michael, (US20230123527A1), “Distributed Client Server System for Generating Predictive Machine Learning Models.” Regarding claim 10, Sadeghnia teaches, the computer-implemented method of claim 1, but Sadeghnia does not teach, Michael teaches, wherein the training of the failure rate prediction model comprises using a maximum likelihood estimation algorithm to train a Weibull distribution model resulting in the trained failure rate prediction model, (the maintenance records 302 may include one or more of a description of work orders, notifications, task lists 904, repair records, goods movement 305, or bill of materials, [0074]; the maintenance record data 302 may be consolidated via a data consolidation process 308 in order to perform preliminary calculations, [0075]; in some embodiments of the invention, the age calculation function 316 calculates a distribution of the age at replacement of each part, by part type, across the portfolio of operating assets collected by the data aggregator 315, [0110]; a fitter, such as the Weibull fitter 317, may be applied to the distribution of age at replacement of all parts of a defined part type, obtained from the age calculation function 316. FIGS. 14a and 14b show examples of fitting a Weibull probability distribution function or a Weibull cumulative distribution function to the distribution of age at replacement of all parts, respectively, [0112]; in some embodiments of the invention, a part failure and remaining useful life determination module 300 applies the trained machine learning models to new transactional and sensor data to predict the probability of part failure and/or the remaining useful life of the part, [0101]). Sadeghnia and Michael are both considered to be analogous to the claimed invention because both are in the field of failure analysis of components. It would have been obvious to one of ordinary skill in the art before the effective filing date to combine the electrical power transformer data collection and analysis techniques of Sadeghnia with the probability distribution fitting techniques of Michael, to determine the failure pattern of the part using a failure pattern analysis module. Regarding claim 11, Sadeghnia teaches, the computer-implemented method of claim 10, but Sadeghnia does not teach, Michael teaches, wherein the training of the Weibull distribution model comprises determining a shape parameter and a scale coefficient, (In some embodiments of the invention, the Weibull fitting may produce one or more of three parameters, shape, scale and location, that may be used to construct probability and cumulative density functions associated with failure patterns, [ ] the shape parameter enables the identification of three fundamental failure patterns; premature failure, random failure, and wear out failure), [0113]). Sadeghnia and Michael are both considered to be analogous to the claimed invention because both are in the field of failure analysis of components. It would have been obvious to one of ordinary skill in the art before the effective filing date to combine the electrical power transformer data collection and analysis techniques of Sadeghnia with the probability distribution fitting techniques of Michael, to determine the failure pattern of the part using a failure pattern analysis module and provide recommendations for maintenance interventions associated with the failure patterns, [0113]. Claim 15 is rejected under 35 U.S.C. § 103 as being taught by Sadeghnia, (US 20240103098 A1), hereafter Sadeghnia, “Method and Device for Analyzing the State, Condition, and Power Quality of Transformers in Power Grids,” in view of Secic, "Vibro-Acoustic Methods in the Condition Assessment of Power Transformers: A Survey,” IEEE Access, vol. 7, pp. 83915-83931, 2019, in further view of Foros, “Health Index, Risk and Remaining Lifetime Estimation of Power Transformers,” IEEE Transactions on Power Delivery, vol. 35, no. 6., Dec 2020. in further view of Michael, (US20230123527A1), hereafter Michael, “Distributed Client Server System for Generating Predictive Machine Learning Models,” and in further view of Odibat, (US20220215325A1), hereafter Odibat, “Automated Identification of Changed-Induced Incidents.” Regarding claim 15, Sadeghnia teaches, the computer program product of claim 13, wherein the stored program instructions are stored in a computer readable storage device (A computer-readable storage medium comprising instructions that are executable by a processor of a device, [claim 10], in a server data processing system, Sadeghnia does not teach, Michael teaches, (a client-server system that performs machine learning based information fusion to predict part failure likelihood, Michael, [Abstract]), Sadeghnia and Michael are both considered analogous to the claimed invention as both are in the field of network analysis and remote processing. It would have been obvious to one of ordinary skill in the art before the effective filing date to combine the transformer data collection and analysis techniques of Sadeghnia with the network configuration of Michael to provide a communication interface 252 that connects to a network 253 for communicating with other computing devices, [0070]. and wherein the stored program instructions are downloaded in response to a request over a network to a remote data processing system for use in a computer readable storage device associated with the remote data processing system, further comprising: program instructions to meter use of the program instructions associated with the request; and program instructions to generate an invoice based on the metered use, Sadeghnia does not teach, Odibat teaches, (wherein the stored program instructions are downloaded in response to a request over a network to a remote data processing system for use in a computer readable storage device associated with the remote data processing system, further comprising: program instructions to meter use of the program instructions associated with the request; and program instructions to generate an invoice based on the metered use, [claim 14.]) Sadeghnia and Odibat are both considered analogous to the claimed invention as both are in the field of network analysis and remote processing. It would have been obvious to one of ordinary skill in the art before the effective filing date to combine the transformer data collection and analysis techniques of Sadeghnia with the remote operations service provisioning techniques of Odibat so computer readable program instructions described herein can be downloaded to respective computing/processing devices from a computer readable storage medium or to an external computer or external storage device via a network, provide remote services, [0124]). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure or directed to the state of the art is listed on the enclosed PTO-892. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL BOROWSKI whose telephone number is (703) 756-1822, (michael.borowski@uspto.gov). The examiner can normally be reached M-F 8-4:30. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jerry O’Connor can be reached on (571) 272-6787. The fax phone number for the organization where this application or proceeding is assigned is (571) 273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at (866) 217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call (800) 786-9199 (IN USA OR CANADA) or (571) 272-1000. /MB/ Patent Examiner, Art Unit 3624 /MEHMET YESILDAG/Primary Examiner, Art Unit 3624
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Prosecution Timeline

Show 3 earlier events
Feb 04, 2026
Examiner Interview Summary
Feb 04, 2026
Applicant Interview (Telephonic)
Feb 19, 2026
Response Filed
Apr 09, 2026
Final Rejection mailed — §101, §103
May 20, 2026
Interview Requested
Jun 09, 2026
Request for Continued Examination
Jun 17, 2026
Response after Non-Final Action
Aug 17, 2026
Non-Final Rejection mailed — §101, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12749034
MACHINE LEARNING TO PREDICT PART CONSUMPTION USING FLIGHT DEMOGRAPHICS
4y 4m to grant Granted Sep 29, 2026
Study what changed to get past this examiner. Based on 1 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
28%
Grant Probability
85%
With Interview (+57.1%)
2y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 29 resolved cases by this examiner. Grant probability derived from career allowance rate.

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