Prosecution Insights
Last updated: August 14, 2026
Application No. 18/841,300

ELECTRIC COMPRESSOR

Non-Final OA §112
Filed
Aug 23, 2024
Priority
Feb 28, 2022 — nonprovisional of PCTJP2022008276
Examiner
HANSEN, KENNETH J
Art Unit
3746
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Mitsubishi Heavy Industries Ltd.
OA Round
3 (Non-Final)
81%
Grant Probability
Favorable
3-4
OA Rounds
9m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
510 granted / 628 resolved
+11.2% vs TC avg
Moderate +7% lift
Without
With
+7.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
23 currently pending
Career history
651
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
47.3%
+7.3% vs TC avg
§102
16.8%
-23.2% vs TC avg
§112
29.3%
-10.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 628 resolved cases

Office Action

§112
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 28 April 2026 has been entered. Claims 1-20 are pending in the application. Claim 1 has been amended. Claim Objections Claims 1-20 are objected to because of the following informalities: In claim 1, lines 11-12, “comprising motor housing having cylindrical shape and a bearing housing having a disc shape and disposed on side in the shaft direction of the motor housing” should read: --comprising a motor housing having a cylindrical shape and a bearing housing having a disc shape that is disposed on a side of the motor housing in the shaft direction--. In claim 1, line 14, “heel side cooling water passage” should read --wheel side cooling water passage--. In claim 1, line 15, “the coil ends of the stator coils” should read –[[the]] coil ends of the stator coil[[s]]--.1 Appropriate correction is required. 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 1-20 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. In claim 1, lines 15-17, the limitation “at least a portion of it overlaps with the stator coils in the radial direction of the rotating shaft.” is indefinite for at least two reasons: 1) The term “it” lacks sufficient antecedent basis in the claims because the term it is not clear which previously recited element is being referenced, and 2) the phrase “overlaps with the stator coils in the radial direction of the rotating shaft” is indefinite because it is not clear what parts of the previously recited element overlaps in the radial direction because, under the broadest reasonable interpretation of the term, “the radial direction” can indicate the direction facing the shaft or a direction coextensive with the shaft axis when viewed from those perspectives. These issues render the metes and bounds of the claim subject to uncertainty. One suggestion to overcome this rejection is to amend the claim as follows: -- at least a portion of the wheel side cooling water passage extends perpendicularly with respect to shaft axis overlapping with the stator coil in the radial direction of the rotating shaft --. Correction is required. Allowable Subject Matter Claims 1-20 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: The prior art of record either alone or in combination does not teach or fairly suggest the electric compressor of claim 1 and dependents including each recited limitation provided that it is amended to recite the wheel side cooling water passage positioned inside the bearing housing with respect to the stator coils in the manner indicated in the aforesaid 35 U.S.C.112(b) rejection statement, supra. It is the Examiner’s opinion that modifying the available prior art in the manner claimed would not be reasonably foreseeable without benefit of the disclosure of the instant invention. Applicant’s remarks from pp. 7-8 of the response filed 28 April 2026 are hereby incorporated into these reasons for allowance. Response to Arguments Applicant’s arguments with respect to 35 U.S.C.102 rejections over Thompson have been fully considered and are persuasive. The rejections have been withdrawn. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KENNETH J HANSEN whose telephone number is (571)272-6780. The examiner can normally be reached Monday Friday 7:00 AM to 4:00 PM (MT). 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, Mark Laurenzi can be reached at (571) 270-7878. 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. /KENNETH J HANSEN/Primary Examiner, Art Unit 3746 1 Applicant is kindly requested to carefully review these objections and amend the claims accordingly. These objections were first presented in the previous Final Office-action.
Read full office action

Prosecution Timeline

Aug 23, 2024
Application Filed
Sep 05, 2025
Non-Final Rejection mailed — §112
Dec 03, 2025
Response Filed
Jan 28, 2026
Final Rejection mailed — §112
Apr 28, 2026
Request for Continued Examination
Apr 30, 2026
Response after Non-Final Action
May 07, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12704486
PUMP UNIT FOR CHROMATOGRAPH
2y 9m to grant Granted Aug 11, 2026
Patent 12698775
SMOOTH-STARTING ELECTRICAL SUBMERSIBLE PUMPS
2y 1m to grant Granted Aug 04, 2026
Patent 12698776
Alternating Pump Gaps
1y 3m to grant Granted Aug 04, 2026
Patent 12692876
WATER PUMP HOUSING STRUCTURE
1y 10m to grant Granted Jul 28, 2026
Patent 12687165
PUMP WITH CONDUIT SYSTEM FLUIDLY COUPLED TO CYLINDERS
1y 5m to grant Granted Jul 21, 2026
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
81%
Grant Probability
88%
With Interview (+7.2%)
2y 8m (~9m remaining)
Median Time to Grant
High
PTA Risk
Based on 628 resolved cases by this examiner. Grant probability derived from career allowance rate.

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