Prosecution Insights
Last updated: May 29, 2026
Application No. 18/287,144

OPTICAL CONNECTOR AND ITS MANUFACTURING METHOD

Non-Final OA §102
Filed
Oct 16, 2023
Priority
May 17, 2021 — nonprovisional of PCTJP2021018552
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
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allowance Rate
1130 granted / 1256 resolved
+22.0% vs TC avg
Moderate +8% lift
Without
With
+7.5%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
23 currently pending
Career history
1284
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
38.9%
-1.1% vs TC avg
§102
41.3%
+1.3% vs TC avg
§112
17.3%
-22.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1256 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
Read full office action

Prosecution Timeline

Oct 16, 2023
Application Filed
Oct 01, 2025
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12638642
INSTALLING AN OPTICAL FIBER
3y 6m to grant Granted May 26, 2026
Patent 12619124
DEVICE FOR SWITCHING OPTICAL SIGNAL
2y 11m to grant Granted May 05, 2026
Patent 12619028
MULTIFUNCTIONAL SELF-SUSTAINED HOSTING APPARATUS AND RELATED BIDIRECTIONAL OPTICAL SUB ASSEMBLY BASED ON PHOTONIC INTEGRATED CIRCUIT
2y 5m to grant Granted May 05, 2026
Patent 12613379
SPLICE-ON OPTICAL CONNECTORS FOR MULTICORE FIBERS
3y 7m to grant Granted Apr 28, 2026
Patent 12613389
LOCKING RING FOR A CABLE CLOSURE
2y 11m to grant Granted Apr 28, 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

1-2
Expected OA Rounds
90%
Grant Probability
98%
With Interview (+7.5%)
1y 11m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1256 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