Prosecution Insights
Last updated: October 26, 2026

David A Shiao, USPTO Patent Examiner

Listed by the USPTO as SHIAO, DAVID A

Tech Center 2800 • Art Units: 1732 2836

This examiner grants 76% of resolved cases

Performance Statistics

75.5%
Allow Rate
+7.5% vs TC avg
509
Total Applications
+30.9%
Interview Lift
889
Avg Prosecution Days
Based on 490 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
20.1%
§102 Novelty
41.4%
§103 Obviousness
27.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19182384 Determining Power Transfer Profiles for Wireless Power Transfer Devices Final Rejection Apple Inc.
19355629 CONTROLLER, CHARGING SYSTEM, AND VEHICLE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18911351 Power Supply System and Operating Method Non-Final OA ABB Schweiz AG
19220181 POWER PLANT HAVING A FLEXIBLE FIRM SKID Final Rejection GE Vernova Infrastructure Technology LLC
19347979 Power Feeder Non-Final OA Daifuku Co., Ltd.
19475305 METHODS AND APPARATUS FOR USE WITH ELECTRIC VEHICLES Non-Final OA ENPHASE ENERGY, INC.
18883281 EXCESS ENERGY MANAGEMENT FOR SELF-POWERED AIR CONDITIONING SYSTEMS Non-Final OA Carrier Corporation
19107770 WIRELESS POWER TRANSMISSION SYSTEM PROVIDED WITH WIRELESS POWER TRANSMITTER CIRCUIT AND WIRELESS POWER RECEIVER CIRCUIT ELECTROMAGNETICALLY COUPLED WITH EACH OTHER Non-Final OA NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY

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Frequently Asked Questions

What is examiner David A Shiao's allowance rate?

75.5% of resolved applications examined by David A Shiao were allowed (490 resolved cases), compared with 53.6% across Art Unit 1732 over the last five years.

Does an interview help with examiner David A Shiao?

This examiner's interview lift is +30.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner David A Shiao take to allow a patent?

Applications allowed by David A Shiao took 889 days on average from filing to allowance.

Which art unit does examiner David A Shiao work in?

David A Shiao examines applications in Art Unit 1732 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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