Prosecution Insights
Last updated: April 19, 2026
Application No. 18/867,456

SEALING RING HAVING OVERLAPPING SEALING PARTS, AND STATOR ARRANGEMENT HAVING SAME

Final Rejection §112
Filed
Nov 20, 2024
Examiner
LEE, GILBERT Y
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Siemens Energy Global GmbH & Co. Kg
OA Round
2 (Final)
79%
Grant Probability
Favorable
3-4
OA Rounds
2y 6m
To Grant
89%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
1081 granted / 1376 resolved
+26.6% vs TC avg
Moderate +10% lift
Without
With
+10.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
44 currently pending
Career history
1420
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
44.3%
+4.3% vs TC avg
§102
36.9%
-3.1% vs TC avg
§112
13.7%
-26.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1376 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 12/29/25 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 1-15 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 1, 2, 4, 10, and 14 recite “left-hand side”, “upper left-hand sealing part”, “right-hand side”, “lower right-hand sealing part”, “lower left-hand sealing part”. These limitations must be amended because if Fig. 1 is rotated 90 degrees along the vertical access and then the “horizontal plane” and the “vertical plane” are considered with the in view of the claims, the limitations would not read on the seal ring. Claims 3, 5-9, 11-13, and 15 are rejected for depending on a rejected claim. Allowable Subject Matter Claims 1 and 10 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. Claims 2-9 and 11-15 would be allowable if rewritten 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 and to include all of the limitations of the base claim and any intervening claims. Conclusion THIS ACTION IS MADE FINAL. 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

Nov 20, 2024
Application Filed
Sep 30, 2025
Non-Final Rejection — §112
Dec 29, 2025
Response Filed
Mar 30, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12595747
METHOD OF MITIGATING VIBRATIONS IN A SEAL COMPONENT
2y 5m to grant Granted Apr 07, 2026
Patent 12590545
METHOD FOR MANUFACTURING SEAL RING, METHOD FOR ASSEMBLING TURBINE, AND TURBINE
2y 5m to grant Granted Mar 31, 2026
Patent 12553520
METAL SEAL FOR DYNAMIC DOWNHOLE ENVIRONMENTS
2y 5m to grant Granted Feb 17, 2026
Patent 12546395
SLIDE RING
2y 5m to grant Granted Feb 10, 2026
Patent 12535013
GAS TURBINE ENGINE WITH CARBON/CARBON COMPOSITE PISTON SEAL
2y 5m to grant Granted Jan 27, 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 (+10.4%)
2y 6m
Median Time to Grant
Moderate
PTA Risk
Based on 1376 resolved cases by this examiner. Grant probability derived from career allow rate.

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