Prosecution Insights
Last updated: April 19, 2026
Application No. 18/282,236

SYSTEM AND PROCESS FOR MONITORING WEAR ON COMPONENTS OF A GRINDING MILL

Non-Final OA §101
Filed
Sep 15, 2023
Examiner
SHECHTMAN, SEAN P
Art Unit
2896
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Bühler AG
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
3y 2m
To Grant
98%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
650 granted / 866 resolved
+7.1% vs TC avg
Strong +22% interview lift
Without
With
+22.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
21 currently pending
Career history
887
Total Applications
across all art units

Statute-Specific Performance

§101
11.9%
-28.1% vs TC avg
§103
30.1%
-9.9% vs TC avg
§102
28.6%
-11.4% vs TC avg
§112
23.9%
-16.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 866 resolved cases

Office Action

§101
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 . Claim Rejections - 35 USC § 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. Claim(s) 26-50 rejected under 35 U.S.C. 101 because the claimed invention is directed to an abstract idea without significantly more. The claims recite: 26. A process, comprising: detecting measurement data on a wear condition of a component of a grinding mill and on an operating state of the grinding mill periodically or continuously over time; assigning the measurement data to at least one parameter on the wear condition of the component a degree of wear of the component and the degree of wear to a maintenance loss, corresponding to a yield loss based on technical maintenance of the component; deriving from several pieces of measurement data detected at different times a future wear condition at a time in the future and assigns the future wear condition to a future degree of wear and a future maintenance loss; assigning the measurement data on at least one parameter of the operating state of the grinding mill a grinding yield value that specifies a yield from operation of the grinding mill, and determines a grinding yield loss relative to a target yield level of the grinding mill; deriving a future operating state from several pieces of measurement data detected at different times, and deriving a future grinding yield loss at a future time; and optimizing a maintenance time in the future, by establishing as the future maintenance time that time at which the future maintenance loss corresponds to the future grinding yield loss. 27. The process in accordance with claim 26, further comprising: aggregating the measurement data of parameters of the grinding mill on the wear condition of the component and/or on the operating state of the grinding mill; and assigning, based on the measurement data which has been aggregated, an aggregated degree of wear to the component and a relevant maintenance loss and/or assigning the operating state of the grinding mill an aggregated grinding yield loss. 28. The process in accordance with claim 26, further comprising: compiling a forecast of a future maintenance loss and the future grinding yield loss using regression and/or interpolation. 29. The process in accordance with claim 26, further comprising: optimizing the future maintenance loss and the future grinding yield loss automatically using machine learning. 30. The process in accordance with claim 29, wherein: the machine learning sends a control signal for regulation of the operation of the grinding mill, the operation of the grinding mill is optimized corresponding to a desired maintenance time, self-adaptively in such a way that the future maintenance time corresponds to the optimized maintenance time. 31. The process in accordance with claim 29, wherein the optimizing further comprises: optimizing the operation of the grinding mill by an optimization in relation to an amount of parallelism of grinding rolls of a roll pair, a mutual gap of the grinding rolls and/or a rotational velocity of the grinding rolls, based on the future maintenance loss and the future grinding yield loss. 32. The process in accordance with claim 26, wherein the detecting the measurement data comprises: detecting measurement data on a temperature of components, a roll profile and/or a roughness of grinding rolls of the grinding mill, a rotational velocity of the grinding rolls, a vibration of the grinding rolls, a gap of rolls of a grinding roll pair, energy consumption of the grinding mill, production quantity of the grinding mill, a grinding level of the material being ground, a time since last maintenance and/or downtimes of the grinding mill. 33. The process in accordance with claim 26, further comprising: optimizing the maintenance time in the future using specification data from the grinding mill and/or a grinding material to be ground from a data pool to determine the future maintenance loss and the future grinding yield loss. 34. The process in accordance with claim 33, wherein: the data pool provides data relevant to a specific grinding mill, particularly data on costs for material and work for a maintenance task, energy costs for operation of the grinding mill and/or information on the grinding material. 35. The process in accordance with claim 33, wherein: the data pool provides measurement data on technical parameters relating to a wear condition of a component and/or an operating state of other, comparable grinding mills, for optimization of determining the future maintenance loss and future grinding yield loss by comparison and/or inclusion of the measurement data. 36. The process in accordance with claim 26, further comprising: a display to visually display a degree of wear of at least one component and/or a maintenance loss relating to at least one component and/or a grinding yield loss of the grinding mill as a curve over time. 37. The process in accordance with claim 36, wherein: the display displays a visualized, tailored dashboard format, designed in such a way that wear reports, recommended future maintenance times and information on a grinding operation. 38. The process in accordance with claim 26, wherein: loading the measurement data on technical parameters in relation to a wear condition of a component and the operating state of the grinding mill into a cloud platform and/or a data pool with data relating to a specific grinding mill and/or data relating to other, comparable grinding mills into the cloud platform. 39. The process in accordance with claim 26, further comprising: automatically triggering a cycle of maintenance for the grinding mill based on the future maintenance loss ascertained and the future grinding yield loss by an automated signal generation and transmission and/or an offer for maintenance of the components and/or a maintenance order. 40. The process in accordance with claim 26, further comprising: uniquely identifying a grinding roll of the grinding mill using electronically stored data relating to the component. 41. The process in accordance with claim 26, further comprising: transferring at least an actual degree of wear and an actual grinding yield level for automated control of the grinding mill. 42. The process in accordance with claim 26, further comprising: ascertaining from measurement data on technical parameters relating to a wear condition of a component and/or from measurement data on the operating state of the grinding mill at least one specific maintenance task required for specific wear and a future maintenance time for this required specific maintenance task is established as a time at which a specific future maintenance loss resulting from the specific wear corresponds to a specific future grinding yield loss resulting from the specific wear. 43. A system, comprising: sensors for detecting measurement data on a wear condition of a component and an operating state of a grinding mill; analysis circuitry configured to: assign the measurement data to at least one parameter on the wear condition of a component of a degree of wear of the at least one component and the degree of wear to a maintenance loss, corresponding to a grinding yield loss based on technical maintenance of the component, derive from several pieces of the measurement data, a wear condition at a future time and to assign to it a future degree of wear and a future maintenance loss, assign the measurement data on at least one parameter of the operating state of the grinding mill a grinding yield value that specifies a yield from operation of the grinding mill, and determines the grinding yield loss relative to a target yield level of the grinding mill, derive a future operating state from several pieces of measurement data detected at different times, and derive a future grinding yield loss at a time in the future therefrom, and optimize a maintenance time in the future, by establishing as the future maintenance time a time at which a future maintenance loss corresponds to the future grinding yield loss. 44. The system in accordance with claim 43, wherein: the sensors include at least one of temperature sensor and a vibration sensor, and the sensors further include a data transmitter and a microprocessor to provide the measurement data on a grinding roll of the grinding mill for the analysis circuitry. 45. The system in accordance with claim 43, wherein: the analysis circuitry receives data regarding a specific grinding mill from a digital cloud platform. 46. The system in accordance with claim 43, wherein: a grinding roll of the grinding mill includes an identifier for unique identification. 47. The system in accordance with claim 43, wherein the analysis circuitry includes: circuitry for machine learning; servicing circuitry; and aggregation circuitry and/or regression circuitry, that is present in a cloud platform. 48. A grinding mill for grinding of grinding material, comprising: a grinding roll pair; and a system in accordance with claim 43. 49. The grinding mill in accordance with claim 48, wherein: the grinding roll pair is configured for grinding wheat and/or rye and/or durum wheat and/or oats and/or barley and/or peas and/or chick peas and/or pulses and/or rape and/or soya and/or cacao and/or coffee as a grinding material. 50. The process according to claim 26, further comprising: performing maintenance based on the maintenance time which has been optimized. The limitations above, as drafted, is a process or function that, under its broadest reasonable interpretation, covers performance of the limitation in the mind but for the recitation of generic computer components. That is, other than reciting a grinding roll pair and steps by sensors/circuitry, nothing in the claim element precludes the step from practically being performed in the mind. For example, but for the sensors/circuitry language, detecting, assigning, deriving, and optimizing, in the context of this claim encompasses a user thinking about or manually making calculations for detecting, assigning, deriving, and optimizing. If a claim limitation, under its broadest reasonable interpretation, covers performance of the limitation in the mind but for the recitation of generic computer components, then it falls within the “Mental Processes” grouping of abstract ideas. Accordingly, the claim recites an abstract idea. This judicial exception is not integrated into a practical application. In particular, the claim only recites the additional element(s) – reciting a grinding roll pair and steps by sensors/circuitry. The circuitry is recited at a high-level of generality (i.e., as a generic processor performing a generic computer function) such that it amounts no more than mere instructions to apply the exception using a generic computer component. The sensors recite only insignificant extra solution activity of data collection. The roll pair is a general linking. Accordingly, this additional element does not integrate the abstract idea into a practical application because it does not impose any meaningful limits on practicing the abstract idea. The claim is directed to an abstract idea. The claim does not include additional elements that are sufficient to amount to significantly more than the judicial exception. As discussed above with respect to integration of the abstract idea into a practical application, the additional element(s) of circuitry amounts to no more than mere instructions to apply the exception using a generic computer component. Mere instructions to apply an exception using a generic computer component cannot provide an inventive concept. The sensors recite only insignificant extra solution activity of data collection. The roll pair is a general linking (paragraph 2, 6-7, of the instant disclosure). The claim is not patent eligible. Allowable Subject Matter Claim 26-50 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 101 set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: While WO 2018/036978 to Buhler, supplied by applicant, teaches monitoring the wear of components of a grinding apparatus (1), in particular grinding rolls (2) of the grinding apparatus, comprising: acquiring measurement data for technical parameters relating to a wear state of a component, and an operating state of the grinding apparatus by means of a sensor system; analyzing the wear behavior of the grinding apparatus by means of an analysis unit, and exchanging data by means of at least one data transmitter and at least one data receiver, wherein the sensor system acquires measurement data relating to the wear state of at least one component and the operating state of the grinding apparatus periodically or continuously over time (Abstract, Figs. 1, 3, 7). Buhler, fails to disclose all the claimed features of applicant’s instant invention, specifically including: 26. A process, comprising: detecting measurement data on a wear condition of a component of a grinding mill and on an operating state of the grinding mill periodically or continuously over time; assigning the measurement data to at least one parameter on the wear condition of the component a degree of wear of the component and the degree of wear to a maintenance loss, corresponding to a yield loss based on technical maintenance of the component; deriving from several pieces of measurement data detected at different times a future wear condition at a time in the future and assigns the future wear condition to a future degree of wear and a future maintenance loss; assigning the measurement data on at least one parameter of the operating state of the grinding mill a grinding yield value that specifies a yield from operation of the grinding mill, and determines a grinding yield loss relative to a target yield level of the grinding mill; deriving a future operating state from several pieces of measurement data detected at different times, and deriving a future grinding yield loss at a future time; and optimizing a maintenance time in the future, by establishing as the future maintenance time that time at which the future maintenance loss corresponds to the future grinding yield loss. 43. A system, comprising: sensors for detecting measurement data on a wear condition of a component and an operating state of a grinding mill; analysis circuitry configured to: assign the measurement data to at least one parameter on the wear condition of a component of a degree of wear of the at least one component and the degree of wear to a maintenance loss, corresponding to a grinding yield loss based on technical maintenance of the component, derive from several pieces of the measurement data, a wear condition at a future time and to assign to it a future degree of wear and a future maintenance loss, assign the measurement data on at least one parameter of the operating state of the grinding mill a grinding yield value that specifies a yield from operation of the grinding mill, and determines the grinding yield loss relative to a target yield level of the grinding mill, derive a future operating state from several pieces of measurement data detected at different times, and derive a future grinding yield loss at a time in the future therefrom, and optimize a maintenance time in the future, by establishing as the future maintenance time a time at which a future maintenance loss corresponds to the future grinding yield loss. It is for these reasons that applicant’s invention defines over the prior art of record. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SEAN P SHECHTMAN whose telephone number is (571)272-3754. The examiner can normally be reached 9:30am-6:00pm, M-F. 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, William Kraig can be reached at 571-272-8660. 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. /Sean Shechtman/ Primary Examiner, Art Unit 2896
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Prosecution Timeline

Sep 15, 2023
Application Filed
Jan 24, 2026
Non-Final Rejection — §101
Apr 01, 2026
Interview Requested
Apr 08, 2026
Applicant Interview (Telephonic)
Apr 08, 2026
Examiner Interview Summary

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
75%
Grant Probability
98%
With Interview (+22.4%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 866 resolved cases by this examiner. Grant probability derived from career allow rate.

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