Prosecution Insights
Last updated: May 29, 2026
Application No. 18/515,549

FIBER OPTIC BEAM SPLITTER

Final Rejection §102
Filed
Nov 21, 2023
Priority
Nov 22, 2022 — provisional 63/427,250
Examiner
STAHL, MICHAEL J
Art Unit
2874
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Netafim Ltd.
OA Round
2 (Final)
90%
Grant Probability
Favorable
3-4
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, 3-4, and 8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 10379311 B1. Claim 1: '311 discloses a fiber optic beam splitter comprising: a housing 102, PNG media_image1.png 210 179 media_image1.png Greyscale a single first optical fiber A (labeled in annotated crop from fig. 4 above); and a pair of second optical fibers B and C (as labeled above) which meet and abut the single first optical fiber (col. 6 lns. 22-33) at a location within the housing, the housing overmolded over the single first optical fiber and the pair of second optical fibers (col. 2 lns. 27-30 and 46-49; col. 4 lns. 1-5; col. 5 lns. 35-38; col. 6 lns. 5-9; col. 7 ln. 15 - col. 8 ln. 15; fig. 6). The term "fiber optic beam splitter" which appears in the preamble is regarded as an intended use for the device, since the body of the claim defines a structurally complete invention (MPEP 2111.02(II)). Claim 3: Each optical fiber B / C of the pair of second optical fibers only partially abuts the single first optical fiber A (they abut only along a line of contact). Claim 4: The pair of second optical fibers B / C extend alongside each other within the housing towards the location where they meet and abut the single first optical fiber A. Claim 8: The pair of second optical fibers and the single first optical fiber, are uncoated (col. 5 lns. 31-35; col. 6 lns. 12-14 and 28-33). Response to Arguments All rejections of the 9/30/2025 action were overcome by the 12/10/2025 amendments and associated remarks. A new reference is applied to several claims in the present action. Allowable Subject Matter Claims 10-15 remain allowed as set forth in a previous action. Claims 2, 5-7, and 9 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 all applicable intervening claims. 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. The additional references cited on the attached 892 disclose other examples of encapsulated / potted optical fiber devices. 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

Nov 21, 2023
Application Filed
Sep 30, 2025
Non-Final Rejection mailed — §102
Dec 02, 2025
Interview Requested
Dec 09, 2025
Applicant Interview (Telephonic)
Dec 09, 2025
Examiner Interview Summary
Dec 10, 2025
Response Filed
Mar 18, 2026
Final Rejection mailed — §102
Apr 21, 2026
Response after Non-Final Action

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.

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Prosecution Projections

3-4
Expected OA Rounds
90%
Grant Probability
98%
With Interview (+7.5%)
1y 11m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1256 resolved cases by this examiner. Grant probability derived from career allowance rate.

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