Prosecution Insights
Last updated: October 27, 2026

Tan-Uyen Thi Ho, USPTO Patent Examiner

Listed by the USPTO as HO, TAN-UYEN THI

Tech Center 3700 • Art Units: 3771 3773 3778 3782

This examiner grants 24% of resolved cases

Analysis

Tan-Uyen Thi Ho is an examiner in Tech Center 3700, specifically Art Unit 3771. With 54 resolved cases, the examiner maintains an allowance rate of 24.1%. The median time to reach an allowance is 1449 days. An interview lift of 14.8% suggests that direct communication may improve the likelihood of a grant during the lengthy prosecution process.

Major companies like Edwards Lifesciences Corporation, Boston Scientific Corporation, and Cilag GmbH International are among the top applicants. Condo Roccia Koptiw LLP, CROCKETT & CROCKETT, PC, and FERGUSON CASE ORR PATERSON LLP are notable firms handling cases here. The 24.1% allowance rate and 1449 days median pendency indicate a challenging environment. Practitioners should note the 14.8% interview lift when considering their strategy. With 54 resolved cases, the examiner has a developing record in medical technology. This profile offers essential data for firms to refine their approach in Tech Center 3700.

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

Performance Statistics

24.1%
Allow Rate
-45.9% vs TC avg
69
Total Applications
+14.8%
Interview Lift
1449
Avg Prosecution Days
Based on 54 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
22.1%
§102 Novelty
46.8%
§103 Obviousness
25.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18717955 DELIVERY SYSTEMS FOR ENDOLUMINAL PROSTHESES AND METHODS OF USE Non-Final OA Boston Scientific Scimed, Inc.
17543958 MOTOR CONTROL AND FEEDBACK IN POWERED SURGICAL DEVICES Final Rejection Cilag GmbH International
18940688 MODULAR BIOPROSTHETIC VALVES AND METHODS FOR DESIGNING AND MAKING THEM Non-Final OA The Board of Trustees of the Leland Stanford Junior University
18649749 COVER FOR PROSTHETIC VALVE EXPANSION MECHANISM Non-Final OA EDWARDS LIFESCIENCES CORPORATION
18627145 ADJUSTABLE ANNULOPLASTY DEVICE Non-Final OA EDWARDS LIFESCIENCES CORPORATION

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Frequently Asked Questions

What is examiner Tan-Uyen Thi Ho's allowance rate?

24.1% of resolved applications examined by Tan-Uyen Thi Ho were allowed (54 resolved cases), compared with 65.9% across Art Unit 3771 over the last five years.

Does an interview help with examiner Tan-Uyen Thi Ho?

This examiner's interview lift is +14.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Tan-Uyen Thi Ho take to allow a patent?

Applications allowed by Tan-Uyen Thi Ho took 1,449 days on average from filing to allowance.

Which art unit does examiner Tan-Uyen Thi Ho work in?

Tan-Uyen Thi Ho examines applications in Art Unit 3771 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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