Prosecution Insights
Last updated: April 19, 2026
Application No. 17/396,938

HYBRID DOUBLE-INLET VALVE FOR PULSE TUBE CRYOCOOLER

Non-Final OA §112
Filed
Aug 09, 2021
Examiner
TEITELBAUM, DAVID J
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Sumitomo (SHI) Cryogenics of America, Inc.
OA Round
3 (Non-Final)
69%
Grant Probability
Favorable
3-4
OA Rounds
3y 1m
To Grant
94%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allow Rate
459 granted / 669 resolved
-1.4% vs TC avg
Strong +25% interview lift
Without
With
+25.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
48 currently pending
Career history
717
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
53.1%
+13.1% vs TC avg
§102
17.4%
-22.6% vs TC avg
§112
27.3%
-12.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 669 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 . Election/Restrictions Applicant’s election without traverse of Species A in the reply filed on 4/20/2023 is acknowledged. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-2, 4-7, 9-11, and 15-16 rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claims 1 and 6 recite “a needle end port directly connected to an end of the fixed restrictor and a stem port directly connected to another end of the fixed restrictor”. Directly connected elements require the elements be directly connected (i.e. attached) to one another. However, there does not appear to be support in the originally filed specification for the needle end port being directly connected to an end of the fixed restrictor because there is a conduit in between the needle end port and an end of the fixed restrictor. Further, there does not appear to be support for a stem port directly connected to another end of the fixed restrictor because there appears to be a conduit between the stem port and the another end of the fixed restrictor. There does appear be support for the needle end port being directly connected, via a conduit, to an end of the fixed restrictor and the stem port being directly connected, via a conduit, to another end of the fixed restrictor. Claim 2,4-5, 7, 9-11 and 15-16 are rejected to as being dependent from a rejected claim. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DAVID J TEITELBAUM whose telephone number is (571)270-5142. The examiner can normally be reached on Monday-Friday 8:00 am-4:30 pm EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, FRANTZ JULES can be reached on (571) 272-66816681. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /DAVID J TEITELBAUM/Primary Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Aug 09, 2021
Application Filed
May 19, 2023
Non-Final Rejection — §112
Aug 23, 2023
Response Filed
Oct 02, 2023
Final Rejection — §112
Jan 04, 2024
Response after Non-Final Action
Jan 04, 2024
Notice of Allowance
Jan 24, 2024
Response after Non-Final Action
Mar 01, 2024
Response after Non-Final Action
Mar 10, 2024
Response after Non-Final Action
May 14, 2024
Response after Non-Final Action
Jul 19, 2024
Response after Non-Final Action
Jul 19, 2024
Response after Non-Final Action
Jul 22, 2024
Response after Non-Final Action
Jul 22, 2024
Response after Non-Final Action
Aug 26, 2025
Response after Non-Final Action
Oct 23, 2025
Request for Continued Examination
Oct 31, 2025
Response after Non-Final Action
Jan 23, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

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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
69%
Grant Probability
94%
With Interview (+25.4%)
3y 1m
Median Time to Grant
High
PTA Risk
Based on 669 resolved cases by this examiner. Grant probability derived from career allow rate.

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