Prosecution Insights
Last updated: October 26, 2026

Andrew V Do, USPTO Patent Examiner

Listed by the USPTO as DO, ANDREW V

Tech Center 3700 • Art Units: 2852 3762

This examiner grants 85% of resolved cases

Analysis

DO, ANDREW V examines applications in Tech Center 3700 and Art Unit 2852. The record includes 583 resolved cases, with an 84.9% allowance rate and a median of 938 days to allowance. The 11.1% interview lift indicates that interviews are associated with a modest improvement in allowance outcomes.

The listed companies are Samsung Electronics Co., Ltd., Canon Inc., and Seiko Epson Corporation. The leading firms are BANNER & WITCOFF, LTD., HARNESS DICKEY (DETROIT), and HARNESS, DICKEY & PIERCE, P.L.C. The high allowance rate and established case volume support practical planning around claim amendments, interviews, and expected timing.

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

Performance Statistics

84.9%
Allow Rate
+14.9% vs TC avg
601
Total Applications
+11.1%
Interview Lift
938
Avg Prosecution Days
Based on 583 resolved cases, 2023–2026

Rejection Statute Breakdown

2.2%
§101 Eligibility
39.6%
§102 Novelty
38.1%
§103 Obviousness
15.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19006360 Component Movement Mechanism for an Image Forming Apparatus Non-Final OA Brother Kogyo Kabushiki Kaisha
18660548 METHOD OF MEASURING A PEEL STRENGTH BETWEEN A CARRIER TAPE AND A COVER TAPE AND APPARATUS FOR PERFORMING THE SAME Final Rejection Samsung Electronics Co., Ltd.
18899657 DEVELOPING DEVICE Non-Final OA CANON KABUSHIKI KAISHA
18945781 Method For Manufacturing Electronic Device Non-Final OA SEIKO EPSON CORPORATION

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Frequently Asked Questions

What is examiner Andrew V Do's allowance rate?

84.9% of resolved applications examined by Andrew V Do were allowed (583 resolved cases), compared with 78.8% across Art Unit 2852 over the last five years.

Does an interview help with examiner Andrew V Do?

This examiner's interview lift is +11.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Andrew V Do take to allow a patent?

Applications allowed by Andrew V Do took 938 days on average from filing to allowance.

Which art unit does examiner Andrew V Do work in?

Andrew V Do examines applications in Art Unit 2852 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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