Prosecution Insights
Last updated: April 19, 2026

Examiner: CHOI, WILLIAM SOON

Tech Center 3700 • Art Units: 3679 3746 3753

This examiner grants 74% of resolved cases

Performance Statistics

73.9%
Allow Rate
+3.9% vs TC avg
408
Total Applications
+11.3%
Interview Lift
1023
Avg Prosecution Days
Based on 372 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
33.0%
§102 Novelty
38.0%
§103 Obviousness
25.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18650448 CLOSURE ADAPTER Final Rejection NATIONAL OILWELL VARCO, L.P.
19075110 TUBE COUPLING Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18688175 GLAND, PIPE JOINT, AND METHOD FOR JOINING PIPES Non-Final OA KUBOTA CORPORATION
19216850 JOINT STRUCTURE Non-Final OA FUJIKIN INCORPORATED
19063902 Coupling Having Visual Installation Indicators Non-Final OA Victaulic Company
19217588 Hose Connectors Non-Final OA Mulch Unlimited, Inc.
17232489 ELECTROSTATIC DISCHARGE MITIGATION DEVICE Non-Final OA ENTEGRIS, INC.
18838638 ASSEMBLY FOR ALIGNING Non-Final OA Siemens Energy Global GmbH & Co. KG
19001550 Liquid coupler Non-Final OA Cooler Master Technology Inc.
18752491 POTTED CAVITY FITTING Non-Final OA GOODRICH CORPORATION
18947310 FITTING ASSEMBLY FOR COLLAPSE-RESISTANT HOSE Final Rejection Parker-Hannifin Corporation
18809403 Arrangement Having a Coupling Connection Non-Final OA AS Strömungstechnik GmbH
19101624 CONNECTOR, PIPE SYSTEM AND ASSEMBLING PROCESS Non-Final OA Elysee Irrigation Ltd.
19045846 Bell and Spigot and Method of Making Same Non-Final OA Springseal, Inc.
18555530 MINING HOSE CONNECTING DEVICE AND METHOD Final Rejection CCTEG CHONGQI RESEARCH INSTITUTE
18214641 CONDUIT CONNECTION DEVICE FOR AN INSERTION-INSTRUMENT AND ENDOSCOPE APPARATUS Non-Final OA OLYMPUS MEDICAL SYSTEMS CORP.
18992896 CLAMP Non-Final OA TRIDON MPC INDUSTRIES B.V.
18549759 Connecting Device for Connecting a First Line End to a Second Line End Non-Final OA Flecotec AG
18863999 Compact End Fitting Assembly For Composite Pipe Non-Final OA Saipem S.A.
18653519 FIBER REINFORCED LAMINATE PIPE JOINT INSERT Non-Final OA Grant Prideco, Inc.
18914235 Pipe Fitting Seal and Pipe Connecting Structure Non-Final OA SHANGHAI VISION MECHANICAL JOINT CO., LTD
18808485 Fitting Configured to Connect and Transition into a Conduit Body Final Rejection Robroy Industries - Texas, LLC
18807143 METALLIC FLUID TUBE Final Rejection Veritas AG
18833325 EXHAUST PIPE JOINT Non-Final OA Tenneco Automotive Operating Company LLC
18559275 MULTIMEDIA-COMPATIBLE ROTARY UNION Final Rejection DEUBLIN GMBH
15522272 FITTING FOR CONNECTING TO A TUBULAR ELEMENT, TUBING CONNECTION AND A METHOD FOR CONNECTING A FITTING TO A TUBULAR ELEMENT Final Rejection Conex IPR Limited

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