Prosecution Insights
Last updated: October 02, 2026

Examiner: SUL, DOUGLAS YOUNG

Tech Center 3700 • Art Units: 3771 3785 3786

This examiner grants 55% of resolved cases

Analysis

Douglas Young Sul works within Tech Center 3700 and Art Unit 3771. The examiner has managed 591 resolved cases in this unit. An allowance rate of 54.8 percent indicates the share of cases that result in a patent. Practitioners can use the 55.9 percent interview lift to assess the impact of a meeting. This lift shows that the probability of allowance is higher when an interview occurs. The 55.9 percent figure is a comparison to the baseline allowance rate of 54.8 percent.

The median time to allowance is 1288 days. This 1288-day duration represents the time required to reach an allowance. Art Unit 3771 is the specific group where these 591 resolved cases were examined. Tech Center 3700 is the administrative division for this examiner. Practitioners can use these metrics to plan for the duration of the prosecution process. The data indicates the frequency of grants and the impact of direct communication with the examiner during the application cycle.

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
615
Total Applications
+55.9%
Interview Lift
1288
Avg Prosecution Days
Based on 591 resolved cases, 2023–2026

Rejection Statute Breakdown

7.1%
§101 Eligibility
10.4%
§102 Novelty
47.3%
§103 Obviousness
27.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18356330 CONCENTRIC BREATHING CIRCUIT WITH BOOST ZONE Non-Final OA Covidien LP
18257530 PATIENT INTERFACE Non-Final OA ResMed Pty Ltd
18545255 PERCEPTION SYSTEM FOR A LOWER BODY POWERED EXOSKELETON Non-Final OA Kia Corporation
18567220 PRESSURE REGULATOR DEVICE Non-Final OA Fisher & Paykel Healthcare Limited
18250663 HEADGEAR, INTERFACE AND AN ASSEMBLY Final Rejection Fisher & Paykel Healthcare Limited
18568882 RESPIRATORY THERAPY DEVICES Final Rejection SMITHS MEDICAL INTERNATIONAL LIMITED
17916838 REINFORCED MEDICO-SURGICAL TUBES AND THEIR MANUFACTURE Non-Final OA SMITHS MEDICAL INTERNATIONAL LIMITED
18255786 Improvements to Adhesive Strips that Secure Nasal Pillows to Nostrils Non-Final OA Nozeseal, LLC

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