Prosecution Insights
Last updated: October 26, 2026

Alain Chau, USPTO Patent Examiner

Listed by the USPTO as CHAU, ALAIN

Tech Center 3700 • Art Units: 2834 3741

This examiner grants 81% of resolved cases

Analysis

CHAU, ALAIN is assigned to tech center 3700 and art unit 2834, with 599 resolved cases. The profile shows an 80.6% allowance rate and a median of 987 days to allowance. The record indicates frequent allowance outcomes, although the time to allowance remains significant for applicants managing prosecution budgets and product timing.

Interviews correspond with a 25.5% lift in the allowance rate. The listed companies are Rolls-Royce, GE Vernova Infrastructure Technology, and General Electric. The leading firms are Barnes & Thornburg, Bookoff McAndrews, and Davidson Kappel. Counsel can use the recurring industrial focus to prepare technically specific discussions and to frame amendments around the examiner's identified distinctions.

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

Performance Statistics

80.6%
Allow Rate
+10.6% vs TC avg
626
Total Applications
+25.5%
Interview Lift
987
Avg Prosecution Days
Based on 599 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
24.8%
§102 Novelty
43.4%
§103 Obviousness
28.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19575281 FUELDRAULIC HEAT MANAGEMENT SYSTEM Non-Final OA ROLLS-ROYCE PLC
18368460 FASTENER APPARATUS, FASTENER ATTACHING DEVICE USING THE FASTENER APPARATUS, AND FASTENER ATTACHING METHOD USING THE FASTENER ATTACHING DEVICE Final Rejection SUBARU CORPORATION
19223008 SYSTEM AND METHOD HAVING ISOTHERMAL COMBUSTION ALONG SET OF TURBINE BLADES VIA VARYING FLUID INJECTION ALONG SET OF TURBINE VANES Non-Final OA GE Vernova Infrastructure Technology LLC
18550373 METHOD FOR PROCESSING A CARDBOARD WITH A LASER BEAM Final Rejection BOBST MEX SA
19223102 PROPULSION SYSTEM FOR JET NOISE REDUCTION Non-Final OA General Electric Company
18966518 POWER CONVERTER TOPOLOGY AND CONTROL SCHEME FOR MITIGATING THERMAL BOWING IN GAS TURBINE ENGINES Non-Final OA GENERAL ELECTRIC COMPANY
18550916 LASER WELDING PENETRATION MONITORING Non-Final OA JAGUAR LAND ROVER LIMITED

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Frequently Asked Questions

What is examiner Alain Chau's allowance rate?

80.6% of resolved applications examined by Alain Chau were allowed (599 resolved cases), compared with 68.3% across Art Unit 2834 over the last five years.

Does an interview help with examiner Alain Chau?

This examiner's interview lift is +25.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Alain Chau take to allow a patent?

Applications allowed by Alain Chau took 987 days on average from filing to allowance.

Which art unit does examiner Alain Chau work in?

Alain Chau examines applications in Art Unit 2834 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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