Prosecution Insights
Last updated: April 19, 2026

Examiner: RIETH, STEPHEN EDWARD

Tech Center 1700 • Art Units: 1613 1759 1764

This examiner grants 44% of resolved cases

Performance Statistics

44.4%
Allow Rate
-20.6% vs TC avg
701
Total Applications
+32.5%
Interview Lift
1207
Avg Prosecution Days
Based on 637 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
15.9%
§102 Novelty
38.8%
§103 Obviousness
30.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18550450 METHOD FOR PRODUCING FOAM PARTICLES FROM EXPANDED THERMOPLASTIC ELASTOMER Non-Final OA BASF SE
18341805 METHOD FOR TREATING WASTE PLASTIC BASED ON PERSULFATE SYSTEM Non-Final OA Tianjin University
17178838 Sports Shoes and Methods for Manufacturing and Recycling of Sports Shoes Non-Final OA adidas AG
18032141 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME Non-Final OA LG CHEM, LTD.
18031860 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME Non-Final OA LG CHEM, LTD.
17926986 RECOVERING POLYMER FROM THREE-DIMENSIONAL PRINTED OBJECTS Non-Final OA HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
18098996 PLASMA POLYMERIZED THIN FILM AND PREPARING METHOD THEREOF Non-Final OA RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
18330632 SEAL MEMBER FOR LIVESTOCK SENSOR AND LIVESTOCK SENSOR Non-Final OA DAIKIN INDUSTRIES, LTD.
17677052 BLOWING AGENT COMPOSITIONS FOR INSULATING FOAMS Final Rejection Owens Corning Intellectual Capital, LLC
16895492 POLYESTER POLYOL COMPOSITIONS CONTAINING HFO-1336MZZM (Z) Final Rejection HONEYWELL INTERNATIONAL INC.
18245265 RECYCLING OF FIBER REINFORCED THERMOSET AND THERMOPLASTIC COMPOSITES AND PREPEGS USING SOLVENTS AND CATALYSTS Non-Final OA WEST VIRGINIA UNIVERSITY BOARD OF GOVERNORS ON BEHALF OF WEST VIRGINIA UNIVERSITY
17920155 THERMALLY EXPANDABLE MICROCAPSULES Final Rejection SEKISUI CHEMICAL CO., LTD.
17882573 METHOD FOR CHEMICAL UPCYCLING OF RESINS CONTAINING ESTER BONDS Non-Final OA ZHEJIANG UNIVERSITY
17624061 THERMALLY EXPANDABLE COMPOSITIONS COMPRISING AN ENDOTHERMIC BLOWING AGENT Non-Final OA SIKA TECHNOLOGY AG
18042828 SURFACE TREATMENT LIQUID AND SURFACE TREATMENT METHOD Non-Final OA TOKYO OHKA KOGYO CO., LTD.
18354678 DISPOSAL METHOD FOR POLYESTER-CONTAINING RELEASE FILM AND MANUFACTURING METHOD OF POLYESTER-CONTAINING OBJECT Non-Final OA NAN YA PLASTICS CORPORATION
18260248 METHOD OF REUSING RESIN SHAPED PRODUCT Non-Final OA ZEON CORPORATION
18064569 ANION EXCHANGE POLYMERS AND MEMBRANES FOR ELECTROLYSIS Non-Final OA UOP LLC
18001090 METHOD FOR THE DEVULCANISATION OF A VULCANISAED RUBBER MIXTURE, DEVICE FOR CARRYING OUT THE METHOD, AS WELL AS A RUBBER MIXTURE AND VEHICLE PNEUMATIC TYRE, COMPRISING A COMPONENT MADE OF THE RUBBER MIXTURE Non-Final OA Continental Reifen Deutschland GmbH
18029080 RECOVERING POLYOLEFIN POLYMER FROM THREE-DIMENSIONAL PRINTED OBJECTS Non-Final OA PERIDOT PRINT LLC
17798411 PROCESS FOR TREATING A POLYAMIDE-BASED COMPOSITION Non-Final OA ARKEMA FRANCE
18020286 REMOVAL OF COLOR FROM POLYMERIC MATERIALS Non-Final OA ALADDIN MANUFACTURING CORPORATION
17786139 IMPROVED PROCESS FOR DEPOLYMERIZING A POLYESTER COMPRISING POLYETHYLENE TEREPHTHALATE Final Rejection IFP ENERGIES NOUVELLES
17783259 ROOFING TILE COATING COMPOSITIONS Non-Final OA Celanese International Corporation
17920135 CELLULOSE-BASED ION-EXCHANGE MEMBRANE, PRODUCTION METHOD FOR SAME, EXOSOME PURIFICATION DEVICE, AND EXOSOME PURIFICATION METHOD Final Rejection TOYOBO CO., LTD.
18207655 FLOW FOCUSING TYPE ONE-STEP DOUBLE EMULSION DROPLET PARALLEL GENERATION DEVICE AND METHOD Non-Final OA Guangzhou University
17909207 FLAME RETARDANT COMPOSITION FOR FOAMED STYRENE RESIN, FLAME-RETARDANT FOAMED-STYRENE-BASED RESIN COMPOSITION, AND EXTRUDED FOAM MOLDED PRODUCT THEREOF Non-Final OA DKS Co. Ltd.
18005414 REUSE OF BIOPLASTICS IN POLYMERISATION Non-Final OA NOVAMONT S.P.A.
18217050 ELECTROCHEMICAL RECYCLING PROCESS FOR POLYESTERS AND POLYURETHANES Non-Final OA UCHIGACO ARGONNE, LLC
18036924 SHRINKABLE HYDROGELS Non-Final OA UNIVERSITEIT UTRECHT HOLDING B.V.

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