Prosecution Insights
Last updated: July 17, 2026
Application No. 17/916,120

Annular Packing Material, Electrochemical Module, Electrochemical Device, Energy System, Solid Oxide Fuel Cell, and Solid Oxide Electrolysis Cell

Final Rejection §112
Filed
Apr 06, 2023
Priority
Mar 31, 2020 — JP 2020-064527 +1 more
Examiner
LY, KENDRA
Art Unit
1749
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Osaka Gas Co. Ltd.
OA Round
2 (Final)
58%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
77%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allowance Rate
334 granted / 576 resolved
-7.0% vs TC avg
Strong +19% interview lift
Without
With
+18.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
26 currently pending
Career history
613
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
92.6%
+52.6% vs TC avg
§102
2.1%
-37.9% vs TC avg
§112
4.8%
-35.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 576 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 . 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 1-4 and 6 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. In claim 1, there are two occurrences of “a cross-sectional shape” for the metal material (see line 7 and line 10 of claim 1). Claim 1 fails to describe which cross-sectional shape/how the cross-sectional shape is taken. Does claim 1 require two different cross-sectional views of the metal material of the annular packing material ? OR, does it require a cross-sectional view of the metal material of the annular packing material having two features to the shape of the metal material ? Applicant’s attention is directed to FIG. 20-FIG. 28 of the instant application. Each figure illustrates “a longitudinal cross-sectional view of an annular packing material”. FIG. 28 illustrates in the longitudinal cross-sectional view of the annular packing material, a shape of the metal material 42a, 52a having an overall substantially D-shape and having a ring shape forming a closed space 42d, 52d over the entire circumference of the annular packing material in the longitudinal cross-sectional view. The metes and bounds of claim 1 is indefinite because it is unclear if it is intended to read on ALL embodiments illustrated in FIG. 20-FIG. 28 OR intended to exclude FIG. 20-FIG. 27 and read on FIG. 28. Clarification is requested. The remaining claims are rejected because they are dependent claims of independent claim 1. Response to Arguments Applicant’s arguments have been considered but are moot in view of the new grounds of rejection presented in this office action. Prior Art of Interest CN 106953108 A teaches a sealing ring structure comprising a first sealing member and a second sealing member (FIG. 1 and FIG. 2). 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 KENDRA LY whose telephone number is (571)270-7060. The examiner can normally be reached Monday-Friday, 8:00-5:00PM. 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, Katelyn B Smith can be reached at 571-270-5545. 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. /KENDRA LY/Primary Examiner, Art Unit 1749
Read full office action

Prosecution Timeline

Apr 06, 2023
Application Filed
Jan 20, 2026
Non-Final Rejection mailed — §112
Apr 20, 2026
Response Filed
Jun 18, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12668703
Particulate Carbon Material Producible From Renewable Raw Materials And Method For Its Production
4y 9m to grant Granted Jun 30, 2026
Patent 12643346
PNEUMATIC TIRE
5y 2m to grant Granted Jun 02, 2026
Patent 12617243
SELF-SEALING TYRE FOR VEHICLE WHEELS
2y 6m to grant Granted May 05, 2026
Patent 12611826
PNEUMATIC TIRE
3y 4m to grant Granted Apr 28, 2026
Patent 12605972
Pneumatic Tire
5y 11m to grant Granted Apr 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
58%
Grant Probability
77%
With Interview (+18.8%)
3y 0m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 576 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month