Prosecution Insights
Last updated: May 29, 2026
Application No. 19/103,111

MECHANICAL SEAL

Non-Final OA §102
Filed
Feb 11, 2025
Priority
Aug 23, 2022 — JP 2022-132434 +1 more
Examiner
BYRD, EUGENE G
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Eagleburgmann Japan Co. Ltd.
OA Round
1 (Non-Final)
70%
Grant Probability
Favorable
1-2
OA Rounds
1y 6m
Est. Remaining
79%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
587 granted / 843 resolved
+17.6% vs TC avg
Moderate +10% lift
Without
With
+9.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
19 currently pending
Career history
873
Total Applications
across all art units

Statute-Specific Performance

§103
90.8%
+50.8% vs TC avg
§102
6.9%
-33.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 843 resolved cases

Office Action

§102
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 § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Fenerty et al. (US 3926443). Regarding claim 1, Fenerty et al. discloses a mechanical seal Fig. 1 which is disposed between a housing 4 and a rotating shaft 2 that rotates relative to the housing, comprising: a stationary sliding ring 10 fixed to a housing side; and a rotating sliding ring 8 fixed to a rotating shaft side slide, wherein the stationary sliding ring and the rotating sliding ring are configured to slide each other through a relative rotation and partition a sealed fluid space and a leakage space off from each other, a seal surface 40 of at least one of the stationary sliding ring and the rotating sliding ring is comprised of a base material 8 having an annular shape and attached to a member on the housing side or a member on the rotating shaft side, and a resin material 24 attached to the base material, and the resin material is configured in an annular shape. Regarding claim 2, Fenerty et al. discloses wherein at least a portion of a sliding surface 40 of remaining one of the stationary sliding ring 10 and the rotating sliding ring 8 slides against the resin material 24 and is comprised of a material (amorphous carbon graphite) having a higher hardness than the resin material. Regarding claim 3, Fenerty et al. discloses wherein the one of the stationary sliding ring 10 and the rotating sliding ring 8 is a stationary seal ring, and the remaining one of the stationary sliding ring and the rotating sliding ring is a rotating seal ring. Regarding claim 4-6, Fenerty et al. discloses wherein at least a part of a seal surface 40 of the base material 8 is formed to be closer to a leakage space side than the resin material Fig. 1. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to EUGENE G BYRD whose telephone number is (571)270-1824. The examiner can normally be reached Monday-Friday 9am-5:30pm. 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, Kristina Fulton can be reached at 5712727376. 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. /EUGENE G BYRD/Primary Examiner, Art Unit 3675
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Prosecution Timeline

Feb 11, 2025
Application Filed
Dec 11, 2025
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12638082
Seal Unit, Joint, Industrial Device and Method
1y 9m to grant Granted May 26, 2026
Patent 12631163
SEALING RING ASSEMBLIES CONFIGURED FOR PRESSURE LOCKING
1y 5m to grant Granted May 19, 2026
Patent 12624760
Gap Cover
1y 7m to grant Granted May 12, 2026
Patent 12618472
IMPROVED COMPRESSION SEALING GASKET AND SEALING SYSTEM
1y 3m to grant Granted May 05, 2026
Patent 12618300
WELLHEAD SEALING SYSTEMS AND METHODS
1y 0m to grant Granted May 05, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
70%
Grant Probability
79%
With Interview (+9.6%)
2y 9m (~1y 6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 843 resolved cases by this examiner. Grant probability derived from career allowance rate.

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