Prosecution Insights
Last updated: October 26, 2026

Andrew M Woo, USPTO Patent Examiner

Listed by the USPTO as WOO, ANDREW M

Tech Center 2400 • Art Units: 2441 2444 2447 2458

This examiner grants 83% of resolved cases

Analysis

WOO, ANDREW M is a USPTO patent examiner in tech center 2400 and art unit 2441. The profile covers 578 resolved cases, with an allowance rate of 82.7% and a median of 1021 days to allowance. The interview lift of 43.9% is a strong positive association with allowance.

The leading companies are Huawei Technologies Co., Ltd., Beijing Zitiao Network Technology Co., Ltd., and The Toronto-dominion Bank. The principal firms are Astute IP Law Group, CHIP LAW GROUP, and Sheridan Ross PC. The data support making interviews a prominent part of prosecution planning, particularly where direct discussion can clarify technical distinctions. The favorable allowance rate should not obscure the need to manage a median timeline that extends beyond a short examination cycle.

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

Performance Statistics

82.7%
Allow Rate
+24.7% vs TC avg
601
Total Applications
+43.9%
Interview Lift
1021
Avg Prosecution Days
Based on 578 resolved cases, 2023–2026

Rejection Statute Breakdown

12.6%
§101 Eligibility
17.4%
§102 Novelty
46.0%
§103 Obviousness
14.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18713586 MESSAGE DISPLAY METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM Final Rejection Beijing Zitiao Network Technology Co., Ltd.
19093695 COMMUNICATION METHOD AND COMMUNICATION APPARATUS Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18598357 RDMA Data Transmission System, RDMA Data Transmission Method, and Network Device Final Rejection Huawei Technologies Co., Ltd.
19051249 DYNAMIC ACTIVATION OF SINGLETON SERVICE Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
19052603 MANAGING USER DATA IN A MULTITENANT DEPLOYMENT Non-Final OA Cisco Technology, Inc.
18653220 INDEPENDENT LOAD BALANCING TO PREVENT NODE AGENT OVERLOAD Final Rejection RED HAT, INC.
19006603 BYPASS ROUTE CACHE FOR A NETWORK ON A CHIP Non-Final OA Advanced Micro Devices, Inc.

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Frequently Asked Questions

What is examiner Andrew M Woo's allowance rate?

82.7% of resolved applications examined by Andrew M Woo were allowed (578 resolved cases), compared with 75.7% across Art Unit 2441 over the last five years.

Does an interview help with examiner Andrew M Woo?

This examiner's interview lift is +43.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Andrew M Woo take to allow a patent?

Applications allowed by Andrew M Woo took 1,021 days on average from filing to allowance.

Which art unit does examiner Andrew M Woo work in?

Andrew M Woo examines applications in Art Unit 2441 in Tech Center 2400 (Networking & Security).

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