Prosecution Insights
Last updated: October 02, 2026
Application No. 18/278,150

A BRAZED PLATE HEAT EXCHANGER

Non-Final OA §112
Filed
Aug 21, 2023
Priority
Feb 22, 2021 — SE 2150186-1 +2 more
Examiner
NIEVES, NELSON J
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Swep International AB
OA Round
2 (Non-Final)
75%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
613 granted / 814 resolved
+5.3% vs TC avg
Strong +17% interview lift
Without
With
+16.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
32 currently pending
Career history
832
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
47.6%
+7.6% vs TC avg
§102
16.0%
-24.0% vs TC avg
§112
34.4%
-5.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 814 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 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 allowance or after an Office action under Ex Parte Quayle, 25 USPQ 74, 453 O.G. 213 (Comm'r Pat. 1935). 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, prosecution in this application has been reopened pursuant to 37 CFR 1.114. Applicant's submission filed on 03/24/2026 has been entered. 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 1-22, 24 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 1 recites the limitation "the heat exchanger plates" throughout the claim. This is unclear and confusing because is un clear how it relates to the previous mentioned first and second heat exchanger plates. Claim 1 recites the limitation "the adjacent heat exchanger plate" in line 16. There is insufficient antecedent basis for this limitation in the claim. Allowable Subject Matter Claim 1-22, 24 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: see Reasons for Allowance mailed 03/09/2026. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NELSON NIEVES whose telephone number is (571)270-0392. The examiner can normally be reached Monday to Friday 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, Frantz Jules can be reached at 571-272-6681. 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. /NELSON J NIEVES/Primary Examiner, Art Unit 3763 07/11/2026
Read full office action

Prosecution Timeline

Aug 21, 2023
Application Filed
Sep 12, 2025
Non-Final Rejection mailed — §112
Dec 10, 2025
Response Filed
Mar 24, 2026
Request for Continued Examination
Apr 07, 2026
Response after Non-Final Action
Jul 15, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12746854
METHOD OF CONTROLLING AIR-CONDITIONING FOR OCCUPANTS THROUGH SEATING DETECTION
3y 5m to grant Granted Sep 29, 2026
Patent 12741319
EXHAUST SYSTEM FOR SUPPORT REMOVAL APPARATUS
3y 3m to grant Granted Sep 22, 2026
Patent 12743115
A VALVE
2y 4m to grant Granted Sep 22, 2026
Patent 12736288
HEAT EXCHANGER WITH TUBE BUNDLE COMPRISING AT LEAST TWO SECTIONS
3y 9m to grant Granted Sep 15, 2026
Patent 12736256
HEAT PUMP, METHOD FOR OPERATING A HEAT PUMP, AND TRANSPORTATION VEHICLE WITH A HEAT PUMP
2y 4m to grant Granted Sep 15, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
75%
Grant Probability
92%
With Interview (+16.6%)
2y 6m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 814 resolved cases by this examiner. Grant probability derived from career allowance rate.

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