Prosecution Insights
Last updated: October 02, 2026
Application No. 18/185,652

ENERGY RECOVERY AND THERMAL CONTROL UTILIZING HEAT PUMP

Final Rejection §112
Filed
Mar 17, 2023
Examiner
OSWALD, KIRSTIN U
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
HAMILTON SUNDSTRAND Corporation
OA Round
4 (Final)
59%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
307 granted / 519 resolved
-10.8% vs TC avg
Strong +32% interview lift
Without
With
+32.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
30 currently pending
Career history
556
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
57.3%
+17.3% vs TC avg
§102
15.6%
-24.4% vs TC avg
§112
24.2%
-15.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 519 resolved cases

Office Action

§112
ALLOWABILITY NOTICE 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 Status Claims 1-5 and 8-19 are pending. Claims 1, 13, and 15 have been amended. Claims 6-7 and 20-21 are canceled. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 13-19 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. Claim 13 recites the limitation "the vapor compression cycle" in line 4. There is insufficient antecedent basis for this limitation in the claim. By virtue of dependency, claims 14-19 are also rejected. Allowable Subject Matter The following is an examiner’s statement of reasons for allowance: the limitations set forth in independent Claims 1 and 13 are not disclosed nor taught by the prior art. Examiner finds the amendment and arguments made by applicant in the amendment/remarks filed 06/26/2026 to be persuasive and overcome the prior art of record. The following is an examiner's statement of reasons for allowance: The prior art does not anticipate nor render obvious the combination set forth in the independent claim. The aforementioned references teach a vehicle system, a vapor cooling system, a vapor compression cycle, a first subsystem, and a second subsystem. The closest prior art of record is Ando et al. (JP 2001010595 A, machine translation), Farkas (2,932,176), Muehthaler et al. (US 2012/0175080 A1), Lynn et al. (US 2021/0053689 A1), Pujar et al. (US 2021/0346841 A1), Mevenkamp et al. (US 2013/0111938 A1), Schiff (US 7,305,842 B1), Jung (US 2013/0255289 A1), and Fiterman et al. (US 9,669,936 B1). However, the references relied upon fail to specifically teach the limitations of: In Claim 1: the references fail to teach or make obvious the specific limitations regarding “…the vapor compression cycle including a reversing valve transformable between a first position and a second position, wherein the cooling medium is movable through the vapor compression cycle in a first direction when the reversing valve is in a first position and the cooling medium is movable through the vapor compression cycle in a second direction when the reversing valve is in a second position; a first medium provided from a first subsystem, the first subsystem being fluidly coupled to the vapor compression cycle;…” Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Linert et al. (US 2017/0349290 A1). 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 KIRSTIN U OSWALD whose telephone number is (571)270-3557. The examiner can normally be reached 10 a.m. - 6 p.m. M-F. 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. /KIRSTIN U OSWALD/Examiner, Art Unit 3763 /ERIC S RUPPERT/Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Show 2 earlier events
Aug 29, 2025
Response Filed
Oct 01, 2025
Final Rejection mailed — §112
Dec 01, 2025
Response after Non-Final Action
Jan 02, 2026
Request for Continued Examination
Feb 15, 2026
Response after Non-Final Action
Mar 27, 2026
Non-Final Rejection mailed — §112
Jun 26, 2026
Response Filed
Sep 11, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12747023
Apparatus for Controlling Temperature and Pressure of Aircraft
3y 1m to grant Granted Sep 29, 2026
Patent 12742576
EJECTOR AND REFRIGERATION SYSTEM HAVING THE SAME
2y 4m to grant Granted Sep 22, 2026
Patent 12736263
TWIST TRAY ICE MAKING SYSTEM WITH SLANTED BRIDGING
2y 11m to grant Granted Sep 15, 2026
Patent 12714932
SKATING RINK THAT RETAINS REFRIGERATION ENERGY BY WAY OF A PHASE-CHANGE MATERIAL
2y 9m to grant Granted Aug 25, 2026
Patent 12716635
INFUSED ICE MAKER APPLIANCE
2y 7m to grant Granted Aug 25, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

5-6
Expected OA Rounds
59%
Grant Probability
92%
With Interview (+32.5%)
3y 2m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 519 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month