Prosecution Insights
Last updated: August 16, 2026
Application No. 19/305,837

Dichtungseinrichtung, Strömungsmaschine und Verwendung

Final Rejection §112
Filed
Aug 21, 2025
Priority
Sep 03, 2024 — DE 102024125115.8
Examiner
LEE, GILBERT Y
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Mtu Aero Engines AG
OA Round
2 (Final)
79%
Grant Probability
Favorable
3-4
OA Rounds
1y 4m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
1105 granted / 1403 resolved
+26.8% vs TC avg
Moderate +11% lift
Without
With
+10.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
26 currently pending
Career history
1440
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
43.8%
+3.8% vs TC avg
§102
30.1%
-9.9% vs TC avg
§112
13.5%
-26.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1403 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 . The amendment filed 4/27/26 has been entered. Claim Objections Claim 19 is objected to because of the following informalities: “gap,” must be amended to --gap.--. 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 26 and 27 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. Claims 26 and 27 rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being incomplete for omitting essential steps, such omission amounting to a gap between the steps. See MPEP § 2172.01. The omitted steps are: there are no steps that are claimed; furthermore, it is unclear to the examiner as to what method is being claimed. For the purposes of this examination, the examiner is interpreting the claims to be claimed a method of sealing a turbomachine/aircraft engine. Allowable Subject Matter Claims 13, 14, 16-20, 22-25, and 28-29 are allowed. Claims 26 and 27 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. Response to Arguments Applicant's arguments filed 4/27/26 have been fully considered but they are not persuasive. Amended claims 26 and 27 still fail to claim what the method is and what steps are needed. Conclusion 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 GILBERT Y LEE whose telephone number is (571)272-5894. The examiner can normally be reached Monday-Friday 8am-430pm. 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, Christine Mills can be reached at (571)272-8322. 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. /GILBERT Y LEE/Primary Examiner, Art Unit 3675
Read full office action

Prosecution Timeline

Aug 21, 2025
Application Filed
Jan 27, 2026
Non-Final Rejection mailed — §112
Apr 27, 2026
Response Filed
Jul 21, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12704181
SEALING SYSTEM
1y 10m to grant Granted Aug 11, 2026
Patent 12698831
STEPPED GASKETS FOR THERMAL INTERFACES AND METHODS OF MAKING AND USING THEREOF
4y 10m to grant Granted Aug 04, 2026
Patent 12692942
RUBBER-METAL LAMINATE AND GASKET
3y 2m to grant Granted Jul 28, 2026
Patent 12680628
A GUARD SENSOR DEVICE FOR USE WITH A CABLE, PIPE OR WIRE TRANSIT, AND A METHOD OF GUARDING A CABLE, PIPE OR WIRE TRANSIT
3y 3m to grant Granted Jul 14, 2026
Patent 12680046
Low Friction Coatings
2y 11m to grant Granted Jul 14, 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
79%
Grant Probability
89%
With Interview (+10.6%)
2y 4m (~1y 4m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1403 resolved cases by this examiner. Grant probability derived from career allowance rate.

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