Prosecution Insights
Last updated: October 02, 2026

Examiner: 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. He has overseen 388 resolved cases. This caseload provides a solid foundation for evaluating his examination style in the mechanical and manufacturing arts. His experience across these 388 cases suggests a consistent and well-established approach to the patenting process within his specific art unit.

The examiner's allowance rate is 60.8 percent. This is a solid figure that indicates a good probability of success for applicants. He also shows a significant interview lift of 28.9 percent. This high lift suggests that interviews are a very effective tool for overcoming rejections. The 28.9 percent increase in allowance probability following an interview is a clear indication that direct communication is a valuable strategy for practitioners working with Durden.

The median days to allowance for his cases is 980. This timeframe is under the thousand-day mark, indicating an efficient path to grant. The combination of a 60.8 percent allowance rate and a 980-day median suggests a predictable and relatively fast prosecution process. Practitioners should consider the 28.9 percent interview lift as a key tactic to maintain this efficiency and ensure that their applications reach a favorable resolution within the 980-day median window.

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

Performance Statistics

60.8%
Allow Rate
-9.2% vs TC avg
423
Total Applications
+28.9%
Interview Lift
980
Avg Prosecution Days
Based on 388 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
10.9%
§102 Novelty
44.1%
§103 Obviousness
40.1%
§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.)
17932413 SEMI-CONSOLIDATED REINFORCED THERMOPLASTIC PIPE WITH PREPREG REINFORCED CORE LAYER Non-Final OA SAUDI ARABIAN OIL COMPANY
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.
18850932 HOSE FOR REFRIGERANT TRANSPORTATION AND PRODUCTION METHOD THEREFOR Final Rejection THE YOKOHAMA RUBBER CO., LTD.
18269887 RUBBER COMPOSITION FOR HOSE, TRANSMISSION OIL PIPE FOR AUTOMOBILE, AND METHOD FOR PRODUCING SAME Final Rejection THE YOKOHAMA RUBBER CO., LTD.
17876506 FLOW CONTROL SYSTEM, APPARATUS FOR TREATING SUBSTRATE INCLUDING THE SAME AND METHOD FOR TREATING SUBSTRATE USING THE SAME Final Rejection SEMES CO., LTD.
18037782 A Tube Final Rejection Coloplast A/S
17836307 COLD CONDUIT INSULATION DEVICE Non-Final OA Watlow Electric Manufacturing Company
18666700 FLEXIBLE HOSE MATERIAL AND A WATER PIPE MADE OF THE FLEXIBLE HOSE MATERIAL Non-Final OA JINAN UNIVERSITY

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