Prosecution Insights
Last updated: October 04, 2026
Application No. 19/077,572

SYSTEM AND METHOD FOR OVERCURRENT PROTECTION USING DYNAMIC TRIP CURVE EVALUATION

Non-Final OA §102§103
Filed
Mar 12, 2025
Priority
Jul 29, 2022 — CIP of 12/537,370 +5 more
Examiner
THOMAS, LUCY M
Art Unit
Tech Center
Assignee
Towa Industries Inc.
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
1y 6m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
513 granted / 822 resolved
+2.4% vs TC avg
Strong +18% interview lift
Without
With
+17.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
41 currently pending
Career history
848
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
55.1%
+15.1% vs TC avg
§102
29.0%
-11.0% vs TC avg
§112
12.6%
-27.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 822 resolved cases

Office Action

§102 §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 . Claim Objections Claims 1-7 are objected to because of the following informalities: Claim 1, line 7 recites, “current valve”, which should be corrected to “current value”.. Appropriate correction is required. Claim Rejections - 35 USC § 102 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 the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1, 3-4, 6-9,11,13-16, 19-20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Sexton et al. (US 2011/0063768). Regarding Claim 1, Sexton discloses an intelligent circuit breaker system (Figures 1-12) comprising: a current sensor that is configured to measure electrical current applied to a power line load (comprising current sensors 525, 530, 535, Figures 5-7); a memory storing trip curve data corresponding to a trip curve of an associated circuit breaker (memory 405 in 312, Figure 4A, trip curve data comprising excessive overcurrent threshold and excessive overcurrent timer data used by processor 410/shown in the flow chart, Figure 10; a processor that is configured to receive a measured current value from said current sensor (part of 312, 410, Figures 4A, 5-7, 525, 530, 535 output to 312, Figures 5-7); said processor further configured to compare said measured current value by said current sensor with a pre-established threshold value (1010, Figure 10); and wherein when said measured current value exceeds a pre-established threshold value (YES at 1010, Figure 10), said processor further is configured to i. start a timer (1015, 1020, Figure 10), ii. determine whether a time duration from said start of said timer (determining whether timer expired 1045, Figure 10), and iii. disconnect said load when said measured current value exceeds a level and duration specified by said trip curve data (measured current value exceeding a level/pre-established threshold value and excessive overcurrent timer duration, YES at 1045 to 1040, Figure 10). Regarding Claim 3, Saxton discloses the system as defined in Claim 1, further comprising a relay operatively coupled to said processor, and wherein said processor is configured to send a control signal to said relay to disconnect said load when said measured current value exceeds said level and duration specified by said trip curve data (open relays at 1040, Figure 10). Regarding Claim 4, Saxton discloses the system as defined in Claim 1, wherein said processor is further configured to log in a data storage for diagnostic or monitoring purposes one or more of said measured current value, timer duration, and/or disconnection events (Paragraph 63, “….tracking of faults in one or more memories and/or control units 312 associated with the ASD 100 may facilitate post mortem failure analysis and/or detections of abuse or misuse of an ASD 100. As one example, an ASD 100 may track the number of GFCI trips, overcurrent trips, self-test failures, and/or other types of identified faults as desired…”) . Regarding Claim 6, Saxton discloses the system as defined in Claim 1, further comprising a user interface configured to display one or more of real-time current values, said status of said timer, and/or whether said load has been disconnected (Paragraphs 60, 68, 69). Regarding Claim 7, Saxton discloses the system as defined in Claim 1, wherein said processor is further configured to reset said timer and reconnect said load automatically when said measured current value falls below said pre-established threshold value for a predefined recovery period (1050, 1070, 1075, Figure 10). Regarding Claim 8, Sexton discloses a method for managing overcurrent conditions in an intelligent circuit breaker system (Figures 1-12) comprising: measuring electrical current applied to a power line load using a current sensor (comprising current sensors 525, 530, 535, Figures 5-7, current values from 450 via data bus 430 to processor 420, Figure 4A, 1005, Figure 10); storing trip curve data corresponding to a trip curve of an associated circuit breaker in a memory (memory 405, Figure 4A, excessive overcurrent threshold and excessive overcurrent timer data used/shown in the flow chart, Figure 10); receiving a current value measured by a current sensor (525, 530, 535 output to 312, Figures 5-7, current values from 450 via data bus 430 to processor 420, Figure 4A); comparing said measured current value with a pre-established threshold value (1010, Figure 10); and disconnecting said load when said measured current value exceeds a level and duration specified by said trip curve data (timers 1015, 1020, YES at 1045 to 1040, Figure 10, measured current value exceeding a level/pre-established threshold value and excessive overcurrent timer duration). Regarding Claim 9, Sexton discloses the method as defined in Claim 8, further comprising starting a timer when said measured current value exceeds said pre-established threshold value and monitoring said duration of said overcurrent condition(1015, 1020, Figure 10). Regarding Claim 11, Sexton discloses the method as defined in Claim 8, further comprising logging in a storage module for diagnostic purposes one or more of said measured current value, duration of said overcurrent condition, and/or load disconnection events (Paragraph 63, “….tracking of faults in one or more memories and/or control units 312 associated with the ASD 100 may facilitate post mortem failure analysis and/or detections of abuse or misuse of an ASD 100. As one example, an ASD 100 may track the number of GFCI trips, overcurrent trips, self-test failures, and/or other types of identified faults as desired…”). Regarding Claim 13, Sexton discloses the method as defined in Claim 8, further comprising reconnecting said load automatically when said measured current value falls below said pre-established threshold value for a predefined recovery period (1050, 1070, 1075, Figure 10). Regarding Claim 14, Sexton discloses the method as defined in Claim 8, further comprising displaying one or more real-time current values, timer status, and/or disconnection status on a user interface (Paragraphs 60, 68, 69). Regarding Claim 15, Sexton discloses a non-transitory computer-readable medium containing instructions (Paragraph 190) that, when executed by a processor (part of 312, 410, Figures 4A, 5-7), causes said processor to: receive a current value measured by a current sensor (comprising current sensors 525, 530, 535, Figures 5-7, current values from 450 via data bus 430 to processor 420, Figure 4A, 1005, Figure 10); compare said measured current value with a pre-established threshold value 1010, Figure 10); start a timer when said measured current value exceeds said pre-established threshold value (YES at 1010 to 1015, 1020, Figure 10); and disconnect said load when said measured current value exceeds a level and duration specified by trip curve data stored in a memory (measured current value exceeding a level/pre-established threshold value and excessive overcurrent timer duration, at 1045 YES to 1040, Figure 10). Regarding Claim 16, Sexton discloses the medium as defined in Claim 15, wherein said instructions further cause said processor to log into a storage module for later analysis one or more of said measured current values, timer durations, and/or disconnection events (Paragraph 63, “….tracking of faults in one or more memories and/or control units 312 associated with the ASD 100 may facilitate post mortem failure analysis and/or detections of abuse or misuse of an ASD 100. As one example, an ASD 100 may track the number of GFCI trips, overcurrent trips, self-test failures, and/or other types of identified faults as desired…”). Regarding Claim 19, Sexton discloses the medium as defined in Claim 15, wherein said instructions further cause said processor to display one or more of real-time current values, overcurrent durations, and/or disconnection statuses on a user interface (Paragraphs 60, 68, 69). Regarding Claim 20, Sexton discloses the medium as defined in Claim 15, wherein said instructions further cause said processor to automatically reset said timer and reconnect said load when said current value falls below said pre-established threshold for a predefined recovery period (1050, 1070, 1075, Figure 10). Claim Rejections - 35 USC § 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 2, 5,10, 12, 17-18 are rejected under 35 U.S.C. 103 as being unpatentable over Sexton et al. (US 2011/0063768) in view of Jimenez et al. (US 2019/0036324). Regarding Claim 2, Sexton does not specifically disclose the system as defined in Claim 1, wherein said processor is further configured to adjust said pre-established threshold value based on one or more environmental factors; said environmental factors include one or more factors selected from the group consisting of ambient temperature, ambient pressure, and ambient humidity. Jimenez discloses an intelligent circuit breaker system (Figures 1-6) comprising: a current sensor that is configured to measure electrical current applied to a power line load (comprising current sensor 20, Figures 1-2); a memory storing trip curve data corresponding to a trip curve of an associated circuit breaker (memory 30 in processor 28, Figures 1-2, trip curves, Figures 3-4); a processor that is configured to receive a measured current value from said current sensor (processor 28, Figures 1-2); wherein said processor is further configured to adjust said pre-established threshold value based on one or more environmental factors (110, 214, Figures 3-4 respectively); said environmental factors include one or more factors selected from the group consisting of ambient temperature, ambient pressure, and ambient humidity (adjusting trip time based on ambient temperature, 104, 204, Figures 3-4 respectively). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide in the system of Sexton, adjusting the pre-established threshold value as taught by Jemenez, to more accurately determine the overcurrent event accounting for the changes due to environmental factors and thus to increase safety of operation. Regarding Claim 5, Sexton does not specifically disclose the system as defined in Claim 1, wherein said processor is further configured to adjust said pre-established threshold value based on one or more environmental factors; said environmental factors include one or more factors selected from the group consisting of ambient temperature, ambient pressure, and ambient humidity. Jimenez discloses an intelligent circuit breaker system (Figures 1-6) comprising: a current sensor that is configured to measure electrical current applied to a power line load (comprising current sensor 20, Figures 1-2); a memory storing trip curve data corresponding to a trip curve of an associated circuit breaker (memory 30 in processor 28, Figures 1-2, trip curves, Figures 3-4); a processor that is configured to receive a measured current value from said current sensor (processor 28, Figures 1-2); wherein said trip curve data stored in said memory includes multiple predefined trip curves (trip curves 50-58, Figures 3-4); said processor is configured to select an appropriate trip curve based on said type of load connected to said power line (108, 210, Figures 3-4 respectively). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide in the system of Sexton, multiple trip curve data as taught by Jemenez, to safely operate the system based on the type of load and its characteristics. Claims 10, 12 recite the method of Claim 8 with corresponding limitations as Claims 5, 2 respectively. Therefore, Claims 10, 12 are rejected for the same reasons as for Claims 5, 2 respectively. Claims 17-18 recite the method of Claim 15 with corresponding limitations as Claims 5, 2 respectively. Therefore, Claims 17-18 are rejected for the same reasons as for Claims 5, 2 respectively. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Hosko et al. (US 2023/0133287) discloses an intelligent circuit breaker system (Figures 1-5) comprising: a current sensor that is configured to measure electrical current applied to a power line load (comprising current sensor 20, Figure 1), and a memory storing trip curve data corresponding to a trip curve of an associated circuit breaker (trip curve data 40 associated with circuit breaker 16, Figures 1-2, Paragraph 26). Any inquiry concerning this communication or earlier communications from the examiner should be directed to LUCY M THOMAS whose telephone number is (571)272-6002. The examiner can normally be reached Mon-Fri 9:30 am - 5:30 pm. 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, Crystal L Hammond can be reached at (571)270-1682. 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. /LUCY M THOMAS/Examiner, Art Unit 2838, 9/19/2026 /CRYSTAL L HAMMOND/Supervisory Primary Examiner, Art Unit 2838
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Prosecution Timeline

Mar 12, 2025
Application Filed
Sep 23, 2026
Non-Final Rejection mailed — §102, §103 (current)

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Prosecution Projections

1-2
Expected OA Rounds
62%
Grant Probability
80%
With Interview (+17.9%)
3y 1m (~1y 6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 822 resolved cases by this examiner. Grant probability derived from career allowance rate.

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