Prosecution Insights
Last updated: October 26, 2026

Quynh Dao Le, USPTO Patent Examiner

Listed by the USPTO as LE, QUYNH DAO

Tech Center 3700 • Art Units: 3781

This examiner grants 33% of resolved cases

Analysis

Quynh Dao Le is assigned to Tech Center 3700 and Art Unit 3781. The profile records 48 resolved cases, a 33.3% allowance rate, and a median of 1291 days to allowance. The allowance rate indicates that fewer than most resolved matters reached allowance, while the median reflects a prolonged prosecution timeline.

The interview lift is 12.1%, showing a modest association with allowance outcomes. Counsel may use interviews selectively and support them with focused written responses. The listed companies are Terumo Corporation, The Procter & Gamble Company, and Edwards Lifesciences Corporation. The listed firms are HARNESS DICKEY (DETROIT), ASLAN LAW, P.C., and Cognition IP, P.C.

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

Performance Statistics

33.3%
Allow Rate
-36.7% vs TC avg
100
Total Applications
+12.1%
Interview Lift
1291
Avg Prosecution Days
Based on 48 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
14.4%
§102 Novelty
62.9%
§103 Obviousness
18.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19039888 HEART-LUNG MACHINE WITH SEMI-AUTONOMOUS INITIATION MODE Non-Final OA Terumo Cardiovascular Systems Corporation
18636577 Systems And Methods For Using Microfluidic Devices With Apheresis Systems Final Rejection Terumo BCT, Inc.
17977626 Systems and Methods For Using Microfluidic Devices With Apheresis Systems Final Rejection Terumo BCT, Inc.
19036503 PACKAGES OF FOLDED ABSORBENT ARTICLES AND FOLDED ABSORBENT ARTICLES Non-Final OA The Procter & Gamble Company
18815143 DURABLE ABSORBENT PANT Final Rejection The Procter & Gamble Company
19098216 CURVED OUTER SHEATH FOR A SHUNT DEVICE DELIVERY DEVICE Non-Final OA EDWARDS LIFESCIENCES CORPORATION
17503188 TRANSCAVAL VENTURI Non-Final OA Edwards Lifesciences Corporation
19022706 WASHABLE AND REUSABLE ABSORBENT UNDERGARMENT Non-Final OA Essity Hygiene and Health Aktiebolag
18855709 Automated Syringe Non-Final OA Becton, Dickinson and Company
17791321 Vial Adapter Device Final Rejection Becton, Dickinson and Company

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Frequently Asked Questions

What is examiner Quynh Dao Le's allowance rate?

33.3% of resolved applications examined by Quynh Dao Le were allowed (48 resolved cases), compared with 50.6% across Art Unit 3781 over the last five years.

Does an interview help with examiner Quynh Dao Le?

This examiner's interview lift is +12.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Quynh Dao Le take to allow a patent?

Applications allowed by Quynh Dao Le took 1,291 days on average from filing to allowance.

Which art unit does examiner Quynh Dao Le work in?

Quynh Dao Le examines applications in Art Unit 3781 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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