Prosecution Insights
Last updated: October 02, 2026

Examiner: THOMASON, DARBY MARGARET

Tech Center 2800 • Art Units: 2874

This examiner grants 72% of resolved cases

Analysis

Darby Margaret Thomason serves in Tech Center 2800 and Art Unit 2874. The examiner has a 72.4% allowance rate across 29 resolved cases. The median days to allowance is 1079, which provides a baseline for the duration of prosecution. While the case volume is 29, these metrics offer an initial look at the examiner's tendencies.

The interview lift is 23.9%, suggesting that interviews are a tool for this examiner. This lift provides a boost to the 72.4% baseline allowance rate. For practitioners, the 23.9% lift indicates that verbal communication can help resolve issues. Given the 1079-day median pendency, an interview may also help move the case toward a grant. As the examiner's total of 29 resolved cases grows, these statistics will become more predictive. For now, they suggest an environment where interviews are beneficial in Art Unit 2874.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

72.4%
Allow Rate
+4.4% vs TC avg
47
Total Applications
+23.9%
Interview Lift
1079
Avg Prosecution Days
Based on 29 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
24.5%
§102 Novelty
50.2%
§103 Obviousness
24.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18754384 FIBER WIRE FIXATION STRUCTURE, OPTICAL SUBMARINE REPEATER, AND METHOD OF ASSEMBLING FIBER WIRE FIXATION STRUCTURE Non-Final OA NEC Corporation
18588127 GRATINGS WITH EDGE APODIZATION FOR IMPROVED MODULATION TRANSFER FUNCTION IN WAVEGUIDES Non-Final OA GOOGLE LLC
17550520 OPEN CAVITY PHOTONIC INTEGRATED CIRCUIT AND METHOD Non-Final OA Intel Corporation
18467009 OPTICAL MODULE Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18461773 OPTICAL MODULE Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
19335272 TRI-LAYER CERAMIC OPTICAL FIBERS AND METHOD OF MAKING Non-Final OA Government of the United States as represented by the Secretary of the Air Force
18802701 TRI-LAYER CERAMIC OPTICAL FIBERS AND METHOD OF MAKING Non-Final OA Government of the United States as represented by the Secretary of the Air Force
18364332 PHOTONIC SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURE Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18738630 ELECTRO-OPTICAL ELEMENT, LIGHT SOURCE MODULE, OPTICAL ENGINE, AND XR GLASSES Non-Final OA TDK CORPORATION
18836954 METHOD AND INTERMEDIATE PRODUCT FOR PRODUCING A MULTI-CORE FIBRE WITH A MARKER Non-Final OA HERAEUS QUARZGLAS GMBH & CO. KG
18770358 FIBER POLARITY MAPPINGS Non-Final OA viaPhoton LLC

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