Prosecution Insights
Last updated: October 26, 2026

Vivian Dang Ho, USPTO Patent Examiner

Listed by the USPTO as HO, VIVIAN DANG

Tech Center 2400 • Art Units: 2431 2497

This examiner grants 0% of resolved cases

Analysis

HO, VIVIAN DANG has resolved 1 case in tech center 2400 and art unit 2431. The allowance rate is 0.0%, and interview lift is 0.0%. With only one resolved case, the profile does not establish a reliable pattern for allowance or interview effectiveness.

The median time to allowance is 764 days. The listed companies are Canon Inc., Google LLC, and T-Mobile USA Inc. The listed firm is Muncy, Geissler, Olds & Lowe, P.C. Practitioners should rely primarily on the individual application record and treat these limited metrics as preliminary context.

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

Performance Statistics

0.0%
Allow Rate
-58.0% vs TC avg
22
Total Applications
+0.0%
Interview Lift
764
Avg Prosecution Days
Based on 1 resolved cases, 2023–2026

Rejection Statute Breakdown

7.3%
§101 Eligibility
14.6%
§102 Novelty
63.4%
§103 Obviousness
12.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18980937 COMMUNICATION APPARATUS CAPABLE OF MULTI-LINK COMMUNICATION, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM STORING CONTROL PROGRAM THEREFOR Final Rejection CANON KABUSHIKI KAISHA
18768407 APPLICATION PERMISSION MANAGEMENT Non-Final OA Beijing Zitiao Network Technology Co., Ltd.
19035616 MAINTAINING SECURITY OF COMMUNICATIONS IN A MULTI-DEVICE ENVIRONMENT Final Rejection Google LLC

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Frequently Asked Questions

What is examiner Vivian Dang Ho's allowance rate?

0.0% of resolved applications examined by Vivian Dang Ho were allowed (1 resolved cases), compared with 76.5% across Art Unit 2431 over the last five years.

Does an interview help with examiner Vivian Dang Ho?

This examiner's interview lift is +0.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Vivian Dang Ho take to allow a patent?

Applications allowed by Vivian Dang Ho took 764 days on average from filing to allowance.

Which art unit does examiner Vivian Dang Ho work in?

Vivian Dang Ho examines applications in Art Unit 2431 in Tech Center 2400 (Networking & Security).

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