Prosecution Insights
Last updated: October 26, 2026

Edmond C Lau, USPTO Patent Examiner

Listed by the USPTO as LAU, EDMOND C

Tech Center 2800 • Art Units: 1781 2871 2881 2884

This examiner grants 72% of resolved cases

Analysis

LAU, EDMOND C is assigned to Tech Center 2800 and art unit 1781. The profile records 656 resolved cases, with an allowance rate of 71.6% and a median of 839 days to allowance. Interviews correspond to a 9.1% lift in the allowance rate. These measures support planning around response timing and provide context for deciding whether examiner discussion should be part of the prosecution strategy.

The listed companies are LG Innotek Co., Ltd., Meta Platforms Technologies LLC, and Canon Inc. The listed firms are Greenberg Traurig, LLP - Meta Platforms, Inc., CANTOR COLBURN LLP, and DINSMORE & SHOHL LLP. Their appearances help practitioners identify relevant counsel and technology owners with experience before the examiner. The profile is useful for portfolio review, but claim-specific analysis remains necessary for each application.

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

Performance Statistics

71.6%
Allow Rate
+3.6% vs TC avg
691
Total Applications
+9.1%
Interview Lift
839
Avg Prosecution Days
Based on 656 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
24.6%
§102 Novelty
57.9%
§103 Obviousness
15.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18922490 OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS HAVING THE SAME Non-Final OA CANON KABUSHIKI KAISHA
18397492 DIMMING MEMBER AND VEHICLE Final Rejection FUYAO GLASS INDUSTRY GROUP CO., LTD.
19005096 VEHICLE DISPLAY DEVICE Non-Final OA LG Display Co., Ltd.
18496257 SINGLE SUBSTRATE LIGHTGUIDE WITH FACETS Non-Final OA GOOGLE LLC
18995502 LIGHT BEAM DEFLECTION DEVICE AND LASER RADAR Non-Final OA BOE Technology Group Co., Ltd.
18777191 OPTICAL ELEMENT DRIVING MECHANISM Final Rejection Actutek Corporation
18290407 VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING VARIABLE MAGNIFICATION OPTICAL SYSTEM Final Rejection NIKON CORPORATION
18846663 SEMICONDUCTOR CHIP AND METHOD OF PRODUCING A PLURALITY OF SEMICONDUCTOR CHIPS Non-Final OA ams-OSRAM International GmbH
18724890 OPTICAL PATH CONTROL MEMBER AND DISPLAY DEVICE COMPRISING SAME Non-Final OA LG INNOTEK CO., LTD.
18722793 OPTICAL SYSTEM, CAMERA MODULE, AND MOBILE TERMINAL Non-Final OA LG INNOTEK CO., LTD.
18937002 ILLUMINATION SYSTEM INCLUDING ZONAL ILLUMINATION OPTICAL CONCENTRATORS Non-Final OA Meta Platforms Technologies, LLC
18312614 OPTICAL FILMS FOR CURVED LAMINATION Non-Final OA Meta Platforms Technologies, LLC
18646258 LIQUID MIRROR Non-Final OA Honeywell International Inc.
18654937 ATYPICAL METASURFACE, WAVEGUIDE IMAGE COMBINER AND AUGMENTED REALITY DEVICE USING ATYPICAL METASURFACE Final Rejection SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

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Frequently Asked Questions

What is examiner Edmond C Lau's allowance rate?

71.6% of resolved applications examined by Edmond C Lau were allowed (656 resolved cases), compared with 47.7% across Art Unit 1781 over the last five years.

Does an interview help with examiner Edmond C Lau?

This examiner's interview lift is +9.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Edmond C Lau take to allow a patent?

Applications allowed by Edmond C Lau took 839 days on average from filing to allowance.

Which art unit does examiner Edmond C Lau work in?

Edmond C Lau examines applications in Art Unit 1781 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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