Prosecution Insights
Last updated: April 19, 2026

Examiner: DURDEN, RICHARD KYLE

Tech Center 3700 • Art Units: 3753

This examiner grants 62% of resolved cases

Performance Statistics

61.5%
Allow Rate
-8.5% vs TC avg
409
Total Applications
+29.9%
Interview Lift
979
Avg Prosecution Days
Based on 377 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
17.3%
§102 Novelty
41.2%
§103 Obviousness
35.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17932419 SEMI-CONSOLIDATED REINFORCED THERMOPLASTIC PIPE (SC-RTP) WITH COMMINGLED FIBER REINFORCEMENT Final Rejection SAUDI ARABIAN OIL COMPANY
18113877 SPRING DAMPENING FOR ACCUMULATOR SYSTEM Final Rejection Deere & Company
18160786 ADDITIVELY MANUFACTURED BELLOWS Final Rejection Relativity Space, Inc.
18037782 A Tube Non-Final OA Coloplast A/S
18289296 HYGIENIC FITTING FOR SANITARY PROCESSING EQUIPMENT Non-Final OA Feldmeier Equipment, Inc.
17151574 REACTIVE FLUID SYSTEM ACCOUNTING FOR THERMAL EXPANSION IN REPLACEMENT OF NITROGEN WITHIN CHARGED PULSATION CONTROL EQUIPMENT Non-Final OA Performance Pulsation Control, Inc.
17772082 Hose Final Rejection Saint-Gobain Placo
18266813 High pressure tube and method of manufacturing the same Non-Final OA ALLEIMA GMBH
18320533 APPARATUS FOR DAMPING PRESSURE PULSATIONS Non-Final OA Witzenmann GmbH
18256576 PIPELINE JUNCTION COATING Non-Final OA TECHNIP N-POWER
18330217 FLUID PULSATION DAMPENERS Non-Final OA BLACOH FLUID CONTROLS, INC.
17991066 POROUS FLOW RESTRICTOR AND METHODS OF MANUFACTURE THEREOF Final Rejection Mott Corporation
18117291 NON-PERMANENT INLET FLANGE AND METHOD FOR CUSTOM INSERT Non-Final OA MasterTek Flow Technologies, LLC
17836307 COLD CONDUIT INSULATION DEVICE Final Rejection Watlow Electric Manufacturing Company
17958197 HEATING ANTI-FREEZING HOSE WITH HEAT TRACING BAND FIXED BY EXTRUSION MOLDING Non-Final OA Hangzhou Lunle Technology Co., Ltd.
17911069 THERMOPLASTIC HOSE, AND A DEVICE AND A METHOD FOR PRODUCING SUCH A HOSE Non-Final OA HC-KUNSTSTOFFWERK RÜLZHEIM GMBH
17756086 AN UNBONDED FLEXIBLE PIPE Final Rejection National Oilwell Varco Denmark I/S
16952015 SYSTEM TO PREVENT LEAKS OF LIQUIDS IN MANUAL SPRAYERS Non-Final OA Swissmex-Rapid, S.A. de C.V.

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