Prosecution Insights
Last updated: October 27, 2026

Uyen Chau N Le, USPTO Patent Examiner

Listed by the USPTO as LE, UYEN CHAU N

Tech Center 2800 • Art Units: 2874 2887

This examiner grants 24% of resolved cases

Performance Statistics

24.3%
Allow Rate
-43.7% vs TC avg
83
Total Applications
-11.6%
Interview Lift
1151
Avg Prosecution Days
Based on 37 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
30.1%
§102 Novelty
47.6%
§103 Obviousness
19.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17358921 WAVEGUIDE PHOTODETECTORS FOR SILICON PHOTONIC INTEGRATED CIRCUITS Final Rejection Intel Corporation
17946955 SILICON PHOTONIC MULTIPLEXER AND DE-MULTIPLEXER Final Rejection Avago Technologies International Sales Pte. Limited
18722774 RESIN COMPOSITION FOR COLORED COATING ON OPTICAL FIBER, OPTICAL FIBER, AND OPTICAL FIBER RIBBON Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18033663 OPTICAL CIRCUIT BOARD AND ELECTRONIC COMPONENT MOUNTING STRUCTURE USING SAME Final Rejection KYOCERA Corporation
18321307 METHODS OF FERRULE RESHAPING FOR DIRECT LOCKING OPTICAL FIBERS AND CORRECTING CORE-TO-FERRULE ECCENTRICITY ERRORS Non-Final OA CORNING RESEARCH & DEVELOPMENT CORPORATION
18653708 TSV-ENABLED HYBRID SILICON PHOTONICS-ON-GLASS PACKAGE Final Rejection Cisco Technology, Inc.
18610011 HYBRID NANOPHOTONIC WAVEGUIDES FOR ENHANCED SECOND ORDER NONLINEAR CONVERSION EFFICIENCY Final Rejection Honeywell International Inc.
18731752 OPTICAL FIBER COUPLING STRUCTURE FOR PHOTONIC PACKAGE Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18769234 WELDED ARMOR FOR FIBER CABLE Final Rejection CommScope Technologies LLC
18264927 OPTICAL CABLE Non-Final OA Fujikura Ltd.
18442072 OPTICAL COUPLING BETWEEN STACKED CHIPS Non-Final OA GlobalFoundries U.S. Inc.
18154065 OPTICAL PHASE SHIFTER HAVING L-SHAPED PN JUNCTION AND MANUFACTURING METHOD THEREFOR Non-Final OA INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

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Frequently Asked Questions

What is examiner Uyen Chau N Le's allowance rate?

24.3% of resolved applications examined by Uyen Chau N Le were allowed (37 resolved cases), compared with 78.9% across Art Unit 2874 over the last five years.

Does an interview help with examiner Uyen Chau N Le?

This examiner's interview lift is -11.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Uyen Chau N Le take to allow a patent?

Applications allowed by Uyen Chau N Le took 1,151 days on average from filing to allowance.

Which art unit does examiner Uyen Chau N Le work in?

Uyen Chau N Le examines applications in Art Unit 2874 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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