Prosecution Insights
Last updated: October 26, 2026

Richard Kyle Durden, USPTO Patent Examiner

Listed by the USPTO as DURDEN, RICHARD KYLE

Tech Center 3700 • Art Units: 3746 3753

This examiner grants 61% of resolved cases

Analysis

Richard Kyle Durden serves in Tech Center 3700 and Art Unit 3746. The examiner has resolved 389 cases with an allowance rate of 60.9 percent. The interview lift is 29.0 percent, suggesting that interviews are an effective strategy. This 29.0 percent lift is a significant factor for the 389 cases resolved.

The median days to allowance is 980. This timeline affects companies like The Yokohama Rubber Co., Ltd. and Airbus SAS. Morgan, Lewis & Bockius LLP and Barclay Damon, LLP are top firms in this docket. The 60.9 percent allowance rate and 980-day median pendency provide a baseline for applicant expectations in Art Unit 3746.

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

Performance Statistics

60.9%
Allow Rate
-9.1% vs TC avg
437
Total Applications
+29.0%
Interview Lift
980
Avg Prosecution Days
Based on 389 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
10.9%
§102 Novelty
43.4%
§103 Obviousness
40.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18776449 DOUBLE-WALL PIPE FOR AN AIRCRAFT FUEL SYSTEM Non-Final OA Airbus Operations (S.A.S.)
18395822 METHODS AND APPARATUS FOR AN ACCUMULATOR Non-Final OA ASM IP Holding B.V.
18822902 METHOD OF JOINING DISSIMILAR MATERIAL PIPES AND DISSIMILAR MATERIAL PIPE Non-Final OA KIA CORPORATION
18201808 VENTILATION PIPE SLEEVE SYSTEM, ENDOSCOPE, AND METHOD FOR MANUFACTURING ENDOSCOPE Final Rejection OLYMPUS MEDICAL SYSTEMS CORP.
18022354 PISTON ACCUMULATOR Non-Final OA HYDAC TECHNOLOGY GMBH

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Frequently Asked Questions

What is examiner Richard Kyle Durden's allowance rate?

60.9% of resolved applications examined by Richard Kyle Durden were allowed (389 resolved cases), compared with 68.0% across Art Unit 3746 over the last five years.

Does an interview help with examiner Richard Kyle Durden?

This examiner's interview lift is +29.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Richard Kyle Durden take to allow a patent?

Applications allowed by Richard Kyle Durden took 980 days on average from filing to allowance.

Which art unit does examiner Richard Kyle Durden work in?

Richard Kyle Durden examines applications in Art Unit 3746 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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