Prosecution Insights
Last updated: October 25, 2026
Application No. 19/252,357

ENERGY STORAGE SYSTEMS AND METHODS USING HETEROGENEOUS PRESSURE MEDIA AND INTERACTIVE ACTUATION MODULE

Final Rejection §102
Filed
Jun 27, 2025
Priority
Dec 03, 2021 — CN 202111466565.5 +6 more
Examiner
LAZO, THOMAS E
Art Unit
3745
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Power8 Tech Inc.
OA Round
2 (Final)
87%
Grant Probability
Favorable
3-4
OA Rounds
1y 0m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
1205 granted / 1388 resolved
+16.8% vs TC avg
Moderate +9% lift
Without
With
+8.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
28 currently pending
Career history
1414
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
40.3%
+0.3% vs TC avg
§102
42.4%
+2.4% vs TC avg
§112
10.0%
-30.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1388 resolved cases

Office Action

§102
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 Amendment Applicant's amendment filed on 8/7/26 is acknowledged. The applicant has overcome the rejection to claims 21-26, 28-31, 33, 34, 36-40, and 42-44 under 35 USC 102(a)(1) by amending claims 21, 37, and 42. The rejection of claims 21-26, 28-31, 33, 34, 36-40, and 42-44 under 35 USC 102(b) is withdrawn. The applicant has overcome the rejections to claims 27, 32, 35, and 41 under 35 USC 103(a) by amending claims 21, 37, and 42. The rejections of claims 27, 32, 35, and 41 under 35 USC 103(a) is withdrawn. The applicant has overcome the nonstatutory double patenting rejection of claims 21, 24-29, and 32-44 by timely filing a terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d). Response to Arguments Applicant’s arguments with respect to claim(s) 42-44 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. DETAILED ACTION 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 42-44 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kim et al. (9,422,948). Regarding claim 42, Kim et al discloses a method of an energy storage system comprises generating a first pressure energy by flowing a working liquid (through valve 155) entering an opening (see fig. 1) of a liquid compartment (liquid portion W of tank 100) of an energy storage 100 thereby compressing an initial gas (A) in a gas compartment (gas portion 102 of tank 100) of the energy storage (supplied via pump 410), discharging the working liquid out of the opening of the liquid compartment and flowing into the generator 420, and driving the generator 420 to generate electricity with the discharged working fluid (Figs. 2 and 7, ) Regarding claim 43, Bell discloses that the liquid compartment stores an initial liquid W. Regarding claim 44, Bell discloses that the second pressure energy drives the initial liquid in a second direction (out via valve 155) that is opposite the first direction (in via valve 155) to discharge the working liquid out of the liquid compartment of the energy storage 100. Conclusion 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. Allowable Subject Matter Claims 21-42 are allowed. The improvement comprises the at least one energy storage, the liquid source, and the converter forming a closed loop system; wherein, during a first operation of the closed loop system, the working liquid flows within the closed system and enters the liquid compartment via an opening of the liquid compartment thereby compressing the initial gas in the gas compartment forming a first pressure energy, and during a second operation of the closed loop system, the initial gas forces the working liquid out of the opening flowing into the converter generating electricity and forming a second pressure energy. Contact Information Any inquiry concerning this communication or earlier communication from the examiner should be directed to Thomas Lazo whose telephone number is (571) 272-4818. The examiner can normally be reached on Monday-Friday from 8:00 am to 4:30 pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor Nathaniel Wiehe, can be reached on (571) 272-8648. The fax phone number for this Group 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. /THOMAS E LAZO/Primary Examiner, Art Unit 3745 September 30, 2026
Read full office action

Prosecution Timeline

Jun 27, 2025
Application Filed
May 13, 2026
Non-Final Rejection mailed — §102
Aug 07, 2026
Response Filed
Oct 05, 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
87%
Grant Probability
96%
With Interview (+8.9%)
2y 4m (~1y 0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1388 resolved cases by this examiner. Grant probability derived from career allowance rate.

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