Prosecution Insights
Last updated: October 27, 2026

Cao H Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, CAO H

Tech Center 2100 • Art Units: 2171 2173 2178 2179

This examiner grants 91% of resolved cases

Analysis

NGUYEN, CAO H works in Technology Center 2100 and Art Unit 2171. The record covers 1158 resolved cases and reports a 90.9% allowance rate. This combination indicates that most resolved matters reached allowance, giving applicants a favorable outcome profile supported by substantial activity. The median time to allowance is 932 days, so the result should be paired with realistic planning for prosecution duration.

Interviews correspond to a 7.4% lift in allowance outcomes. Practitioners may use interviews to address focused questions, while continuing to rely on disciplined claim drafting and written responses for the main prosecution record. The leading companies are Beijing Zitiao Network Technology Co., Ltd., Faurecia Clarion Electronics Co., Ltd., and LG Electronics Inc. Leading firms are BakerHostetler, Akerman LLP, and ALSTON & BIRD LLP.

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

Performance Statistics

90.9%
Allow Rate
+35.9% vs TC avg
1,191
Total Applications
+7.4%
Interview Lift
932
Avg Prosecution Days
Based on 1158 resolved cases, 2023–2026

Rejection Statute Breakdown

9.8%
§101 Eligibility
14.6%
§102 Novelty
47.1%
§103 Obviousness
5.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18825128 DISPLAY DEVICE AND OPERATING METHOD THEREOF Non-Final OA LG ELECTRONICS INC.
18790194 USER INTERFACE RESPONSE BASED ON GAZE-HOLDING EVENT ASSESSMENT Non-Final OA APPLE INC.
18825752 INFORMATION PROCESSING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM Non-Final OA CANON KABUSHIKI KAISHA
18868730 SESSION INFORMATION PROCESSING METHOD AND APPARATUS, AND ELECTRONIC DEVICE Non-Final OA Beijing Zitiao Network Technology Co., Ltd.
18927098 SYSTEMS AND METHODS FOR MANAGING DIGITAL NOTES Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18826393 GENERATING CUSTOMIZED CONTENT DESCRIPTIONS USING ARTIFICIAL INTELLIGENCE Non-Final OA Google LLC
18922160 SYSTEMS AND METHODS FOR CONTENT PROVISION Non-Final OA Sony Interactive Entertainment Inc.
18424567 Synthetic Data Generation for a Document Parsing AI Non-Final OA The Government of the United States of America, as represented by the Secretary of the Navy
18909893 METHODS AND INTERFACES FOR MANAGING AI AGENT ACTIVATION TRIGGERS AND INTERACTIONS Non-Final OA MICROSOFT TECHNOLOGY LICENSING, LLC
18785309 EVALUATION OF ELECTRONIC DOCUMENTS FOR ADVERSE SUBJECT MATTER Non-Final OA Nokia Solutions and Networks Oy
18978976 SYSTEM FOR PROVIDING DYNAMIC LINKED PANELS IN USER INTERFACE Non-Final OA Palantir Technologies Inc.
18156454 DETECT AND FACILITATE REPLAY OF MUTED VIDEOCONFERENCE PARTICIPANT Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18907910 Remote Creation of a Playback Queue for an Event Non-Final OA Sonos, Inc.
18988746 DYNAMIC, FREE-SPACE USER INTERACTIONS FOR MACHINE CONTROL Non-Final OA SIM IP HXR LLC

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Frequently Asked Questions

What is examiner Cao H Nguyen's allowance rate?

90.9% of resolved applications examined by Cao H Nguyen were allowed (1,158 resolved cases), compared with 56.1% across Art Unit 2171 over the last five years.

Does an interview help with examiner Cao H Nguyen?

This examiner's interview lift is +7.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Cao H Nguyen take to allow a patent?

Applications allowed by Cao H Nguyen took 932 days on average from filing to allowance.

Which art unit does examiner Cao H Nguyen work in?

Cao H Nguyen examines applications in Art Unit 2171 in Tech Center 2100 (Computing & Software).

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