Prosecution Insights
Last updated: October 01, 2026
Application No. 19/003,222

No Power-Off Voltage Regulator for Small-Scale Low-Voltage Systems

Final Rejection §102
Filed
Dec 27, 2024
Examiner
QUDDUS, NUSRAT
Art Unit
2838
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Google LLC
OA Round
2 (Final)
89%
Grant Probability
Favorable
3-4
OA Rounds
9m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
738 granted / 828 resolved
+21.1% vs TC avg
Moderate +6% lift
Without
With
+6.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
14 currently pending
Career history
842
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
50.2%
+10.2% vs TC avg
§102
33.5%
-6.5% vs TC avg
§112
11.1%
-28.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 828 resolved cases

Office Action

§102
DETAIL 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 . This Office Action is in response to Applicant’s arguments filed on 07/06/2026. Response to Arguments Applicant’s arguments, see Remarks, filed on 07/06/2026, with respect to claims 1-16 have been fully considered and are persuasive. The 102(a)(1) Rejection of claims 1-16 has been withdrawn. Applicant’s arguments with respect to claim(s) 17-23 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. Claim Rejections - 35 USC § 102 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 17 and 23 is/are rejected under 35 U.S.C 102(a)(1) as being anticipated by Ricky Setiawan et al. (“Ricky”, US Pub 2021/0255653). Regarding independent claim 17, Ricky teaches (Fig. 1-7) a regulator circuit apparatus (Fig. 1; multiple LDOs 115 0-1, 116 0-1; wherein LDO’s detail can be any one of Fig. 3 or Fig. 4; wherein the selected LDO includes two loops i) main loop ‘340 with main output transistor 346 or 440 with main output transistor 446’ and ii) replica loop ‘330 with replica output transistor 336 or 430 with replica output transistor 436’) comprising: a single output transistor (multiple LDOs 115 0-1, 116 0-1’s detail can be any one of Fig. 3 or Fig. 4; wherein the selected LDO includes two loops i) main loop ‘340 with main output transistor 346 or 440 with main output transistor 446’ and ii) replica loop ‘330 with replica output transistor 336 or 430 with replica output transistor 436’) configured to supply power to core circuitry (Fig. 7; 720): in an active state (normal or active state) at an operating voltage (i.e., use of selective high-powered and low powered LDO’s output; Para 47-48 and 19-28) within a safe operating range for core circuitry (Fig. 7; 720); and in a low-power state (snooze/low-power mode) at a low voltage (i.e., use of only low powered LDO’s output; Para 47-48 and 19-28) below the operating voltage (i.e., use of selective high-powered and low powered LDO’s output; Para 47-48 and 19-28) without shutting down the single output transistor (multiple LDOs 115 0-1, 116 0-1’s detail can be any one of Fig. 3 or Fig. 4; wherein the selected LDO includes two loops i) main loop ‘340 with main output transistor 346 or 440 with main output transistor 446’ and ii) replica loop ‘330 with replica output transistor 336 or 430 with replica output transistor 436’); and an amplifier (multiple LDOs 115 0-1, 116 0-1’s detail can be any one of Fig. 3 or Fig. 4; wherein the selected LDO includes two loops and both loop use amplifier Fig. 3’s 320 or Fig. 4’s 420) configured to selectively supply a bias voltage (multiple LDOs 115 0-1, 116 0-1’s detail can be any one of Fig. 3 or Fig. 4; wherein the selected LDO includes two loops and both loop use two bias voltages Vb or Vb1; Para 37-38) to the single output transistor effective to cause the single output transistor (multiple LDOs 115 0-1, 116 0-1’s detail can be any one of Fig. 3 or Fig. 4; wherein the selected LDO includes two loops i) main loop ‘340 with main output transistor 346 or 440 with main output transistor 446’ and ii) replica loop ‘330 with replica output transistor 336 or 430 with replica output transistor 436’) to: supply the operating voltage when the single output transistor is in the active state (i.e., use of selective high-powered and low powered LDO’s output; Para 47-48 and 19-28); and supply the low power voltage when the single output transistor is in the low-power state (i.e., use of only low powered LDO’s output; Para 47-48 and 19-28); wherein the regulator circuit includes a capacitance (Fig. 3-4; Cmain) to apply miller compensation between an output of the amplifier and the output of the single output transistor to limit the bandwidth of the regulator circuit. Regarding claim 23, Ricky teaches (Fig. 1-7) a plurality of regulator circuit apparatuses configured to provide separate supply powers each with operating voltages (i.e., use of selective high-powered and low powered LDO’s output; Para 47-48 and 19-28) within the safe operating range for separate loads of the core circuitry (Fig. 7; 720) (Fig. 1; multiple LDOs 115 0-1, 116 0-1; wherein LDO’s detail can be any one of Fig. 3 or Fig. 4; wherein the selected LDO includes two loops i) main loop ‘340 with main output transistor 346 or 440 with main output transistor 446’ and ii) replica loop ‘330 with replica output transistor 336 or 430 with replica output transistor 436’) Allowable Subject Matter Claims 18-23 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Regarding claim 18, cited art(s) failed to teach, “a current source configured to switchably bias the amplifier and to provide current to power the core circuitry, the current source including: a current mirror configured to provide operating current to the amplifier when the current mirror is in a stable operating condition; a startup circuit configured to direct supplemental current to the current mirror to drive the current mirror into the stable operating condition; and a biasing circuit configured to stop the startup circuit from directing the supplemental current to the current mirror when the current mirror is in the stable operating condition”. Regarding claim 19, cited art(s) failed to teach, as a whole, nor would it be obvious to piecewise combine with any other arts to teach, “a switchable reference voltage including; an always-on source configured to provide an approximation of the reference voltage from an input voltage; a precision voltage source configured to provide the reference voltage after an interval; and a switch configured to provide a reference voltage source configured to provide the approximation of the reference voltage source during the interval and transition to the reference voltage at the end of the interval”. Claims 20-22 are depending from claim 19. Claims 1-16 are allowed. The following is an examiner’s statement of reasons for allowance: Regarding independent claim 1, cited art(s) failed to teach, “a current source configured to switchably bias the amplifier and to provide current to power the core circuitry, the current source including: a current mirror configured to provide operating current to the amplifier when the current mirror is in a stable operating condition; a startup circuit configured to direct supplemental current to the current mirror to drive the current mirror into the stable operating condition; and a biasing circuit configured to stop the startup circuit from directing the supplemental current to the current mirror when the current mirror is in the stable operating condition”. Claims 3-6, 9-10 are depending from claim 1. Regarding independent claim 11, cited art(s) failed to teach, as a whole, nor would it be obvious to piecewise combine with any other arts to teach, “a switchable reference voltage including; an always-on source configured to provide an approximation of the reference voltage from an input voltage; a precision voltage source configured to provide the reference voltage after an interval; and a switch configured to provide a reference voltage source configured to provide the approximation of the reference voltage source during the interval and transition to the reference voltage at the end of the interval”. Claims 12-16 are depending from claim 11. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. PNG media_image1.png 545 651 media_image1.png Greyscale PNG media_image2.png 604 641 media_image2.png Greyscale Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NUSRAT QUDDUS whose telephone number is (571)270-7921. The examiner can normally be reached on M-Th 9-4 PM ET. 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. /NUSRAT QUDDUS/Examiner, Art Unit 2838 /CRYSTAL L HAMMOND/Supervisory Primary Examiner, Art Unit 2838
Read full office action

Prosecution Timeline

Dec 27, 2024
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §102
Jul 06, 2026
Response Filed
Jul 15, 2026
Final Rejection mailed — §102 (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
89%
Grant Probability
95%
With Interview (+6.0%)
2y 6m (~9m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 828 resolved cases by this examiner. Grant probability derived from career allowance rate.

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