Prosecution Insights
Last updated: April 19, 2026

Examiner: THOMASON, DARBY MARGARET

Tech Center 2800 • Art Units: 2874

This examiner grants 84% of resolved cases

Performance Statistics

84.2%
Allow Rate
+16.2% vs TC avg
42
Total Applications
+21.4%
Interview Lift
1051
Avg Prosecution Days
Based on 19 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
28.5%
§102 Novelty
46.1%
§103 Obviousness
24.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17949526 METALLIZED HIGH-INDEX BLAZE GRATING INCOUPLER Non-Final OA Applied Materials, Inc.
18334505 OPTICAL FIBER, METHOD OF DESIGNING OPTICAL FIBER, AND METHOD OF MANUFACTURING OPTICAL FIBER Non-Final OA FURUKAWA ELECTRIC CO., LTD.
18000657 BRAGG GRATING EROSION SENSOR FOR HARSH ENVIRONMENT Non-Final OA COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
18467009 OPTICAL MODULE Final Rejection SUMITOMO ELECTRIC INDUSTRIES, LTD.
18129769 SEMICONDUCTOR PACKAGE AND METHOD FOR MANUFACTURING THE SAME Final Rejection Advanced Semiconductor Engineering, Inc.
18143566 EXTENDABLE OPTICAL CIRCUIT SWITCH ARCHITECTURE Non-Final OA Nokia Solutions and Networks Oy
18692978 OPTICAL DEVICE INCLUDING A FIBER ALIGNMENT STRUCTURE Non-Final OA PSIQUANTUM CORP.
18207063 BACKLIGHT, MULTIVIEW BACKLIGHT, AND METHOD HAVING GLOBAL MODE MIXER Non-Final OA LEIA INC.
18165998 AERIAL DROP OPTICAL FIBRE CABLE Non-Final OA Sterlite Technologies Limited
18205332 FURCATION TUBE VACUUM ASSIST Non-Final OA viaPhoton, Inc.
18233060 LIGHT GUIDE WITH OUTCOUPLING STRUCTURE Non-Final OA REHAU Automotive SE & Co. KG
18000818 SYSTEMS AND METHODS FOR PHOTONIC CHIP COUPLING Non-Final OA SiPhox, Inc.

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