Prosecution Insights
Last updated: July 17, 2026
Application No. 18/368,242

FRICTIONLESS DESIGN OF HIGH-PRESSURE RECIRCULATION THERMO-PUMP

Non-Final OA §112
Filed
Sep 14, 2023
Priority
Sep 29, 2022 — provisional 63/411,115
Examiner
BRANDT, DAVID NELSON
Art Unit
3783
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
KLA Corporation
OA Round
3 (Non-Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
256 granted / 368 resolved
At TC average
Strong +50% interview lift
Without
With
+49.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
53 currently pending
Career history
412
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
68.8%
+28.8% vs TC avg
§102
7.7%
-32.3% vs TC avg
§112
22.8%
-17.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 368 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 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 05/21/2026 has been entered. Response to Amendment The Amendment filed 03/23/2026 has been entered. Claims 1-7, 9-16 & 18-19 are pending in the application. Claim 19 is withdrawn. Claims 8 & 17 are cancelled. 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 1-7, 9-16 & 18 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. As to Claim 1, the limitation “the insert is made from an insert material having at least one of an insert thermal conductivity coefficient below a thermal conductivity threshold or an insert thermal expansion coefficient below a thermal expansion coefficient threshold”, in Lines 17-20, is indefinite. Both of a thermal conductivity threshold and a thermal expansion coefficient threshold were previously defined in Lines 13-15. It is not clear if the two thresholds defined in Lines 17-20 are the same thresholds defined in Lines 13-15, or if the thresholds are different from each other. It does not appear the original disclosure has support for determining whether the thresholds are the same or different. The specification only describes there are thresholds, but never compares the thresholds. As such, it is not clear how to interpret the respective thresholds. The limitation “the one or more displacer rings and the insert direct a gas the displacer”, in Lines 20-21, should read --the one or more displacer rings and the insert direct a gas through the displacer. As to Claim 10, the limitation “the insert is made from an insert material having at least one of an insert thermal conductivity coefficient below a thermal conductivity threshold or an insert thermal expansion coefficient below a thermal expansion coefficient threshold”, in Lines 21-24, is indefinite. Both of a thermal conductivity threshold and a thermal expansion coefficient threshold were previously defined in Lines 18-19. It is not clear if the two thresholds defined in Lines 21-24 are the same thresholds defined in Lines 18-19, or if the thresholds are different from each other. It does not appear the original disclosure has support for determining whether the thresholds are the same or different. The specification only describes there are thresholds, but never compares the thresholds. As such, it is not clear how to interpret the respective thresholds. The limitation “the one or more displacer rings and the insert direct a gas the displacer”, in Lines 24-25, should read --the one or more displacer rings and the insert direct a gas through the displacer. The phrase “the one or more bushing”, in Line 26, should read --the one or more bushings. Response to Arguments Applicant's arguments filed 03/23/2026 have been fully considered but they are not persuasive. Regarding the 112(b) rejections for Claims 1 & 10, the amendments to the claims did not overcome the previous rejections, as described above. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DAVID BRANDT whose telephone number is (303)297-4776. The examiner can normally be reached Monday-Thursday 10-6, 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, Bhisma Mehta can be reached at (571) 272-3383. 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. /DAVID N BRANDT/ Primary Examiner, Art Unit 3783
Read full office action

Prosecution Timeline

Sep 14, 2023
Application Filed
Sep 24, 2025
Non-Final Rejection mailed — §112
Dec 29, 2025
Response Filed
Jan 21, 2026
Final Rejection mailed — §112
Mar 23, 2026
Response after Non-Final Action
May 21, 2026
Request for Continued Examination
May 26, 2026
Response after Non-Final Action
Jun 01, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12674452
MODULAR PLUNGER PACKING GLAND ASSEMBLY
3y 9m to grant Granted Jul 07, 2026
Patent 12669128
PUMP UNIT, PUMP SYSTEM, AND PUMP SYSTEM OPERATION METHOD
1y 3m to grant Granted Jun 30, 2026
Patent 12656030
LINEAR COMPRESSOR WITH A SELF-ALIGNED COUPLING
2y 4m to grant Granted Jun 16, 2026
Patent 12650134
JET PUMP SYSTEM
2y 3m to grant Granted Jun 09, 2026
Patent 12595786
AIR COMPRESSOR STRUCTURE
1y 10m to grant Granted Apr 07, 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
70%
Grant Probability
99%
With Interview (+49.5%)
2y 7m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 368 resolved cases by this examiner. Grant probability derived from career allowance rate.

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