Prosecution Insights
Last updated: October 26, 2026

Douglas Young Sul, USPTO Patent Examiner

Listed by the USPTO as SUL, DOUGLAS YOUNG

Tech Center 3700 • Art Units: 3771 3785 3786

This examiner grants 55% of resolved cases

Analysis

SUL, DOUGLAS YOUNG works in tech center 3700 and art unit 3771. The record contains 593 resolved cases, an allowance rate of 54.8%, and a median of 1288 days to allowance. The substantial case volume provides meaningful context for the allowance figure, which indicates mixed outcomes. The median shows that prosecution may require an extended period before allowance and should be reflected in portfolio planning.

The interview lift is 56.0%, making interviews a prominent strategic consideration in this record. Fisher & Paykel Healthcare Limited, Smiths Medical, and Nicoventures Trading Limited are the listed companies. Knobbe, Martens, Olson & Bear, LLP, Bradley Arant Boult Cummings - Nashville, and Bridgeway IP Law Group, PLLC are the listed firms.

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

Performance Statistics

54.8%
Allow Rate
-15.2% vs TC avg
628
Total Applications
+56.0%
Interview Lift
1288
Avg Prosecution Days
Based on 593 resolved cases, 2023–2026

Rejection Statute Breakdown

7.2%
§101 Eligibility
10.4%
§102 Novelty
47.1%
§103 Obviousness
28.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18682694 DELIVERY DEVICE AND SYSTEM Non-Final OA Nicoventures Trading Limited
18356330 CONCENTRIC BREATHING CIRCUIT WITH BOOST ZONE Non-Final OA Covidien LP
18545255 PERCEPTION SYSTEM FOR A LOWER BODY POWERED EXOSKELETON Non-Final OA Kia Corporation
18333236 METHODS, APPARATUSES, AND SYSTEMS FOR EVALUATING RESPIRATORY PROTECTIVE DEVICES Final Rejection HONEYWELL SAFETY PRODUCTS USA, INC.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Douglas Young Sul's allowance rate?

54.8% of resolved applications examined by Douglas Young Sul were allowed (593 resolved cases), compared with 65.9% across Art Unit 3771 over the last five years.

Does an interview help with examiner Douglas Young Sul?

This examiner's interview lift is +56.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Douglas Young Sul take to allow a patent?

Applications allowed by Douglas Young Sul took 1,288 days on average from filing to allowance.

Which art unit does examiner Douglas Young Sul work in?

Douglas Young Sul examines applications in Art Unit 3771 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month