Prosecution Insights
Last updated: October 21, 2026
Application No. 18/858,149

OPTICAL CONNECTOR CLEANING DEVICE

Non-Final OA §112
Filed
Oct 18, 2024
Priority
Apr 20, 2022 — JP 2022-069327 +1 more
Examiner
SMITH, CHAD
Art Unit
2874
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
NTT Advanced Technology Corporation
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
4m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
737 granted / 934 resolved
+10.9% vs TC avg
Strong +20% interview lift
Without
With
+20.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
26 currently pending
Career history
970
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
46.9%
+6.9% vs TC avg
§102
40.3%
+0.3% vs TC avg
§112
10.1%
-29.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 934 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 5, 8 and 9 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. Claim 1 recites that the pad and the pressing mechanism are different structures. However, claim 5 recites that the pressing mechanism comprises the pad. Thus, the metes and bounds of the claim cannot be ascertained. Claims 5, 8 and 9 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. Allowable Subject Matter Claims 1 – 4, 6 and 7 are allowed. The following is a statement of reasons for the indication of allowable subject matter: The prior art of record, taken alone or in combination, fails to disclose or render obvious an optical connector cleaning device comprising, among other things, an attachment arranged in the opening and configured to mechanically determine an amount of insertion of the pad pressed in by the end face of the optical connector such that a pressing that the end face of the optical connector receives from the pad falls within a predetermined range in accordance with a type of the optical connector. The closest relevant prior art of record, FUJIWARA et al. (JP2003-200116A), teaches the cleaning element (11), supply and winding reels (12, 13), pad (15), housing (5), traveling mechanism (8), sensor (16), controller (9), but fails to teach or suggest the attachment as claimed or its association with the controller. Thus, with no teaching from the prior art, and without the benefit of applicant's teachings, there is no motivation for one of ordinary skill in the art to combine/modify the prior art of record in a manner so as to create the claimed invention. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHAD SMITH whose telephone number is (571)270-1294. The examiner can normally be reached M-F 7:30 - 5. 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, Uyen-Chau Le can be reached at 1-571-272-2397. 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. /CHAD H SMITH/Primary Examiner, Art Unit 2874
Read full office action

Prosecution Timeline

Oct 18, 2024
Application Filed
Oct 18, 2024
Response after Non-Final Action
Apr 17, 2025
Response after Non-Final Action
Sep 29, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12761419
WAVEGUIDE WITH PERIODIC INDEX OF REFRACTION CLADDING
3y 6m to grant Granted Oct 13, 2026
Patent 12742994
OPTICAL DEVICE AND METHOD OF FABRICATING THEREOF
3y 7m to grant Granted Sep 22, 2026
Patent 12736748
INTEGRATED PHOTONICS OPTICAL GYROSCOPES WITH IMPROVED SENSITIVITY UTILIZING HIGH DENSITY SILICON NITRIDE WAVEGUIDES
2y 9m to grant Granted Sep 15, 2026
Patent 12736398
INTEGRATED OPTICAL SYSTEM-BASED OPTICAL DETECTION DEVICE
2y 4m to grant Granted Sep 15, 2026
Patent 12730257
OPTICAL FIBER WITH WIDE BANDWIDTH AND HIGH GAINS IN O+E BAND AND REGULATION METHOD THEREOF
2y 6m to grant Granted Sep 08, 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
79%
Grant Probability
99%
With Interview (+20.4%)
2y 4m (~4m remaining)
Median Time to Grant
Low
PTA Risk
Based on 934 resolved cases by this examiner. Grant probability derived from career allowance rate.

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