Prosecution Insights
Last updated: April 19, 2026
Application No. 18/287,144

OPTICAL CONNECTOR AND ITS MANUFACTURING METHOD

Non-Final OA §102
Filed
Oct 16, 2023
Examiner
STAHL, MICHAEL J
Art Unit
2874
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Nippon Telegraph and Telephone Corporation
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
2y 2m
To Grant
97%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
1122 granted / 1246 resolved
+22.0% vs TC avg
Moderate +7% lift
Without
With
+7.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
36 currently pending
Career history
1282
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
22.4%
-17.6% vs TC avg
§102
41.8%
+1.8% vs TC avg
§112
29.8%
-10.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1246 resolved cases

Office Action

§102
Notice of Pre-AIA or AIA Status The present application, filed after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 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. Claims 1, 5, and 7 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by JP 3-175406 A (already of record via information disclosure statement). Claim 1: '406 discloses an optical connector comprising: a ferrule 1 that holds a plurality of optical fibers 2 in a state where end faces of the plurality of optical fibers are arranged on a same plane; and a refractive index matching portion 3 that is deformable, in close contact with the end faces of the plurality of optical fibers arranged on the ferrule, and performs matching of a refractive index with the plurality of optical fibers. Claim 5: Each end face of the plurality of optical fibers is perpendicular to an optical axis of each optical fiber (fig. 2). Claim 7: The process of assembling the '406 connector includes steps of: fixing a plurality of optical fibers 2 to a ferrule 1 in a state where end faces of the plurality of optical fibers are arranged on a same plane; and forming a refractive index matching portion 3 that is deformable and performs matching of a refractive index with the plurality of optical fibers in a region of a connection end face of the ferrule where the end faces of the plurality of optical fibers are arranged where the end faces of the plurality of optical fibers are exposed. Allowable Subject Matter Claims 2-4, 6, and 8 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of base claim 1 and any intervening claims. The applied JP 3-175406 A reference does not disclose or suggest, alone or in combination with the other prior art of record, the additional features of claims 2-4 and 6 or the further method steps of claim 8. Conclusion The references listed on the attached 892 form are considered generally relevant to the subject matter of this application. Contact Information Examiner: 571-272-2360 Examiner's direct supervisor: 571-272-2397 Official correspondence by fax: 571-273-8300 Information regarding the status of an application may be obtained from Patent Center. Should you have questions about Patent Center, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). /Michael Stahl/Primary Examiner, Art Unit 2874
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Prosecution Timeline

Oct 16, 2023
Application Filed
Sep 27, 2025
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12596234
OPTICAL MODULE AND OPTICAL CONNECTOR CABLE
2y 5m to grant Granted Apr 07, 2026
Patent 12591093
FACILITATING OPTICAL COUPLING AND BEAM COLLIMATION IN PHOTONIC INTEGRATED CIRCUITS
2y 5m to grant Granted Mar 31, 2026
Patent 12585117
WAVEGUIDE FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY
2y 5m to grant Granted Mar 24, 2026
Patent 12587002
CONDUIT AND METHOD FOR LAYING CABLE
2y 5m to grant Granted Mar 24, 2026
Patent 12585061
LIGHT-EMITTING MODULE
2y 5m to grant Granted Mar 24, 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
90%
Grant Probability
97%
With Interview (+7.4%)
2y 2m
Median Time to Grant
Low
PTA Risk
Based on 1246 resolved cases by this examiner. Grant probability derived from career allow rate.

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