Prosecution Insights
Last updated: July 17, 2026
Application No. 18/850,013

A Device and Method for Oil Storage and Energy Storage

Non-Final OA §112
Filed
Sep 23, 2024
Priority
Apr 02, 2022 — nonprovisional of PCTCN2022085120
Examiner
SCHERMERHORN, JON
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Yuming Cheng
OA Round
1 (Non-Final)
57%
Grant Probability
Moderate
1-2
OA Rounds
1y 7m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 57% of resolved cases
57%
Career Allowance Rate
260 granted / 453 resolved
-12.6% vs TC avg
Strong +34% interview lift
Without
With
+33.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
16 currently pending
Career history
483
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
76.8%
+36.8% vs TC avg
§102
14.4%
-25.6% vs TC avg
§112
6.7%
-33.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 453 resolved cases

Office Action

§112
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 § 112 Claims 1-8 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Apparatus claim 1 recites “A device and method for oil storage and energy storage”. Additionally, claim 1 includes many limitations defining the method of using the apparatus, e.g., “oil from the storage tanks or input by the oil pump room is driven by pumps through the heat exchanger system”. “A single claim which claims both an apparatus and the method steps of using the apparatus is indefinite under 35 U.S.C. 112(b).” MPEP 2173.05(p) II. Claims 2-8 are each drawn to a device and method and are therefore rejected for the same reason as claim 1. Claim 1 also recites the limitation “specially designed oil storage tanks” which renders the claim indefinite. It is unclear how “specially designed” limits the structure of the oil storage tank. One of ordinary skill cannot be reasonably certain of the metes and bounds of the claimed structure. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Each reference is drawn to an oil and or energy storage device similar to Applicant’s invention. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jon T. Schermerhorn Jr. whose telephone number is (571)270-5283. The examiner can normally be reached M-F 9am to 5pm. 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, Len Tran can be reached at (571) 272-1184. 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. /JON T. SCHERMERHORN JR./ Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Sep 23, 2024
Application Filed
Jul 01, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

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2y 10m to grant Granted Jun 23, 2026
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2y 8m to grant Granted Jun 23, 2026
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
57%
Grant Probability
91%
With Interview (+33.7%)
3y 4m (~1y 7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 453 resolved cases by this examiner. Grant probability derived from career allowance rate.

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