Prosecution Insights
Last updated: October 02, 2026
Application No. 18/619,710

EXTERNAL POWER SUPPLY MANAGEMENT FOR ENHANCEMENT OF WORKLOAD PERFORMANCE

Non-Final OA §103
Filed
Mar 28, 2024
Examiner
ZAMAN, FAISAL M
Art Unit
2175
Tech Center
2100 — Computer Architecture & Software
Assignee
Dell Products L.P.
OA Round
3 (Non-Final)
67%
Grant Probability
Favorable
3-4
OA Rounds
4m
Est. Remaining
81%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allowance Rate
632 granted / 940 resolved
+12.2% vs TC avg
Moderate +14% lift
Without
With
+13.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
33 currently pending
Career history
971
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
65.9%
+25.9% vs TC avg
§102
15.1%
-24.9% vs TC avg
§112
11.3%
-28.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 940 resolved cases

Office Action

§103
DETAILED ACTION Response to Amendment 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 § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claims 1-5, 10-14, 16-18, 21, and 22 are rejected under 35 U.S.C. 103 as being unpatentable over Ljubuncic et al. (U.S. Patent Application Publication Number 2016/0162004) and Chen et al. (U.S. Patent Application Publication Number 2021/0251108). Regarding Claims 1, 10, and 16, Ljubuncic discloses a method (as well as a non-transitory machine-readable medium/memory having instructions stored therein, which when executed by a processor, cause the processor to perform operations - paragraph 0010) for managing performance of workloads by hardware components housed in a chassis mounted on a rack system (paragraph 0013), the method comprising: obtaining a request to perform a workload of the workloads (Figure 5, items 502 and 504, paragraphs 0012, 0025, 0036, and 0040-0041; i.e., if a particular computing device 102 [Figure 1] is unable to process a particular task or workload, it requests [equivalent to the claimed “request”] others of the computing devices 102 to perform that task/workload); and in response to obtaining the request: obtaining power risk assessments for a power system of the rack system (Figure 5, item 512, paragraphs 0026, 0031, 0037, and 0043; i.e., the current power resources are determined for the computing device 102 that has received the offload request; a determination that the particular computing device 102 has available power resources to handle another task being equivalent to the claimed “power risk assessments”); obtaining a power consumption estimate for the workload (Figure 5, item 508, paragraphs 0026, 0036, 0040, and 0042; i.e., the offload request can either include the power requirements to execute the task, or the receiving computing node 102 can calculate the power requirements on its own); making a determination regarding whether to accept the request based on the power risk assessments, the power consumption estimate, and acceptable risk criteria (Figure 5, item 514, paragraphs 0026, 0031, and 0043; i.e., the computing node 102 that receives the offload task request determines whether to accept it based on the offload task requirements [the claimed “power consumption estimate”], on the available power resources of the computing node 102 [the claimed “power risk assessments”], and whether power capacity exists to execute the offload task [equivalent to the claimed “acceptable risk criteria”]); in a first instance of the determination where the request is accepted: performing the workload using at least a portion of the hardware components (Figure 5, item 522, paragraph 0046); and in a second instance of the determination where the request is not accepted: rejecting the request (Figure 5, see No branch of decision block 514, paragraph 0043). Ljubuncic does not expressly disclose a rail mounted power system; the chassis being a power supply free chassis that is configured without any power supplies within a body of the chassis and the hardware components being powered solely by one or more power supplies positioned external to the body of the power supply free chassis; wherein the rail mounted power system comprises at least one power supply adapted to: obtain power supply level power, and distribute, using the power supply level power, logic level power to the power supply free chassis, the logic level power being an alternating current (AC) power, and the logic level power is converted to a direct current (DC) power used by the hardware components by an interposer disposed within the power supply free chassis. In the same field of endeavor (e.g., computing racks in data centers), Chen teaches a rail mounted (Figure 2, item 224) power system (paragraph 0023); the chassis (Figure 1A, item 100/Figure 2, item 200) being a power supply free chassis that is configured without any power supplies within a body of the chassis and the hardware components being powered solely by one or more power supplies positioned external to the body of the power supply free chassis (Figure 1B, item 118, paragraph 0022), wherein the rail mounted power system comprises at least one power supply (Figure 1B, item 120/Figure 2, item 220) adapted to: obtain power supply level power (paragraph 0022-0023), and distribute, using the power supply level power, logic level power to the power supply free chassis, the logic level power being an alternating current (AC) power, and the logic level power is converted to a direct current (DC) power used by the hardware components by an interposer (Figure 1B, item 122/Figure 2, item 222) disposed within the power supply free chassis (paragraphs 0022-0023; i.e., AC power is received from external power source 118 at “power supply” 120, which distributes that AC power to the “interposer” 122, which converts it to DC power to be used by “hardware components” 106 and 116). Accordingly, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have combined Chen’s teachings of computing racks in data centers with the teachings of Ljubuncic, for the purpose of reducing the heat buildup in the chassis, thereby resulting in a lower chance of component failure. This is achieved by placing the power supply external to the chassis/rack. Regarding Claims 2, 11, and 17, Chen teaches wherein the rack system is adapted for placement of the power supply free chassis in a high-density computing environment (paragraph 0002) comprising data processing systems, the rack system comprising: a rack (Figure 2, item 200) for housing at least a portion of the data processing systems and adapted to hold at least one chassis, and the rack comprising at least one vertical rail (Figure 2, item 224); and the rail mounted power system, the rail mounted power system being adapted to mount directly to a single vertical rail of the at least one vertical rail (Figure 2, item 220). Regarding Claims 3, 12, and 18, Chen teaches wherein the rail mounted power system further comprises: a power distribution unit adapted to obtain rack system level power and distribute, using the rack system level power, the power supply level power (Figure 1B, item 120, paragraphs 0022-0023); and wherein the at least one power supply is one of the one or more power supplies positioned external to the body of the power supply free chassis (Figure 1B, item 118). Regarding Claims 4 and 13, Chen teaches wherein the rack system further comprises the power supply free chassis (paragraph 0022). Regarding Claims 5 and 14, Chen teaches wherein the power supply free chassis does not house any power components for converting power from the power supply level power to the logic level power, and wherein operation of the hardware components depends on obtaining power from the rail mounted power system (paragraphs 0022-0023). Regarding Claim 21, Chen teaches wherein the rail mounted power system further comprises a logic level power line that connects the at least one power supply directly to the interposer (Figure 1B, see connection between items 120 and 122). Regarding Claim 22, Chen teaches wherein obtaining the power risk assessments comprises using a sensor mounted on the rack system to determine a position of the power supply free chassis on the rack system (Figure 2, item 208, paragraphs 0024 and 0032; i.e., a higher temperature would indicate the chassis is located closer to the sensor 208). Claims 6 and 15 are rejected under 35 U.S.C. 103 as being unpatentable over Ljubuncic and Chen as applied to claims 5 and 14 above, and further in view of Gao (U.S. Patent Application Publication Number 2023/0098147). Regarding Claims 6 and 15, Ljubuncic and Chen do not expressly disclose wherein the rail mounted power system is further adapted to participate in provisioning of redundant power to the power supply free chassis in cooperation with at least one other rail mounted power system. In the same field of endeavor (e.g., computing racks in data centers), Gao teaches wherein the rail mounted power system is further adapted to participate in provisioning of redundant power to the power supply free chassis in cooperation with at least one other rail mounted power system (Figure 9, item 909, paragraphs 0020, 0027, and 0063). Accordingly, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have combined Gao’s teachings of computing racks in data centers with the teachings of Ljubuncic and Chen, for the purpose of allowing the devices in the chassis to continue to operate in the event of failure of the primary power supply. Claims 7-9 are rejected under 35 U.S.C. 103 as being unpatentable over Ljubuncic and Chen as applied to claim 1 above, and further in view of Katiyar et al. (U.S. Patent Application Publication Number 2023/0066580). Regarding Claim 7, Ljubuncic and Chen do not expressly disclose prior to obtaining the request, and for a rail mounted power system: obtaining health information for the rail mounted power system; obtaining a power connectivity map that indicates, at least, dependence of data processing systems of the rack system on the rail mounted power system for power; and obtaining a power risk assessment of the power risk assessments for the rail mounted power system using the health information, the power connectivity map, and a risk assessment system. In the same field of endeavor (e.g., computing racks in data centers), Katiyar teaches prior to obtaining the request, and for a rail mounted power system (Figure 2A, item 111): obtaining health information for the rail mounted power system (Figure 2A, paragraph 0020; i.e., the current power usage of each socket 200 being equivalent to the claimed “health information”); obtaining a power connectivity map that indicates, at least, dependence of data processing systems of the rack system on the rail mounted power system for power (paragraph 0019); and obtaining a power risk assessment of the power risk assessments for the rail mounted power system using the health information, the power connectivity map, and a risk assessment system (paragraphs 0022-0023; i.e., a power cap as well as current power usage is determined for each socket 200; a power risk assessment is made to determine whether a particular workload WL [Figure 3A] should be executed on that device 112 or on another device 112 using a risk assessment system [i.e., whether execution of the workload WL will cause the socket 200 to overload]). Accordingly, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have combined Katiyar’s teachings of computing racks in data centers with the teachings of Ljubuncic and Chen, for the purpose of allowing a user to know which power socket to plug the computing device in, thereby preventing any particular socket from being overloaded. Regarding Claim 8, Katiyar teaches wherein the acceptable risk criteria require decreasing levels of power risk assessment as a level of power consumption increases for the workload to be accepted (paragraph 0027; i.e., the system will only allow up to 80% of the power available on the particular socket 200; as more and more workloads are transferred to that device 112 [the power consumption increases], it will result in “decreasing levels of power risk assessment” in that fewer workloads will be accepted). Regarding Claim 9, Katiyar teaches wherein obtaining the power risk assessment comprises identifying, using a power connectivity map (paragraph 0019), a portion of the rail mounted power systems that impact an ability of the rail mounted power system to provide power (paragraphs 0026-0027; i.e., a current power usage is ascertained for each socket 200 and device 112; when one of these components exceeds its power cap, it can impact an ability of the rail mounted power system to provide power). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure because each reference systems for enhancing workload performance. Response to Arguments Applicant’s arguments with respect to claim 1 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Any inquiry concerning this communication or earlier communications from the examiner should be directed to FAISAL M ZAMAN, ESQ. whose telephone number is (571)272-6495. The examiner can normally be reached Monday - Friday, 8 am - 5 pm, alternate Fridays. 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, Andrew J. Jung can be reached at 571-270-3779. 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. /FAISAL M ZAMAN/ Primary Examiner, Art Unit 2175
Read full office action

Prosecution Timeline

Mar 28, 2024
Application Filed
Oct 24, 2025
Non-Final Rejection mailed — §103
Jan 15, 2026
Response Filed
Feb 11, 2026
Final Rejection mailed — §103
May 07, 2026
Request for Continued Examination
May 08, 2026
Response after Non-Final Action
Aug 12, 2026
Non-Final Rejection mailed — §103 (current)

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

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Prosecution Projections

3-4
Expected OA Rounds
67%
Grant Probability
81%
With Interview (+13.5%)
2y 10m (~4m remaining)
Median Time to Grant
High
PTA Risk
Based on 940 resolved cases by this examiner. Grant probability derived from career allowance rate.

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