Prosecution Insights
Last updated: May 29, 2026

Examiner: RIETH, STEPHEN EDWARD

Tech Center 1700 • Art Units: 1613 1692 1759 1764

This examiner grants 45% of resolved cases

Performance Statistics

44.9%
Allow Rate
-20.1% vs TC avg
706
Total Applications
+32.6%
Interview Lift
1164
Avg Prosecution Days
Based on 642 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
7.3%
§102 Novelty
74.0%
§103 Obviousness
8.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18341805 METHOD FOR TREATING WASTE PLASTIC BASED ON PERSULFATE SYSTEM Non-Final OA Tianjin University
17177049 ORGANIC LIGHT-EMITTING DEVICE Non-Final OA SAMSUNG DISPLAY CO., LTD.
18354678 DISPOSAL METHOD FOR POLYESTER-CONTAINING RELEASE FILM AND MANUFACTURING METHOD OF POLYESTER-CONTAINING OBJECT Non-Final OA NAN YA PLASTICS CORPORATION
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.
16895492 POLYESTER POLYOL COMPOSITIONS CONTAINING HFO-1336MZZM (Z) Final Rejection HONEYWELL INTERNATIONAL INC.
18098996 PLASMA POLYMERIZED THIN FILM AND PREPARING METHOD THEREOF Non-Final OA RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
17924725 Sustainable PBT Compositions with Improved Color Capability Using the Purified Terephthalic Acid Process Non-Final OA SHPP GLOBAL TECHNOLOGIES B.V.
18330632 SEAL MEMBER FOR LIVESTOCK SENSOR AND LIVESTOCK SENSOR Final Rejection DAIKIN INDUSTRIES, LTD.
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.
17624061 THERMALLY EXPANDABLE COMPOSITIONS COMPRISING AN ENDOTHERMIC BLOWING AGENT Non-Final OA SIKA TECHNOLOGY AG
18041717 REMOVAL OF ODORANTS FROM POST-CONSUMER POLYOLEFIN WASTE Non-Final OA BOREALIS AG
18029080 RECOVERING POLYOLEFIN POLYMER FROM THREE-DIMENSIONAL PRINTED OBJECTS Non-Final OA PERIDOT PRINT LLC
18064569 ANION EXCHANGE POLYMERS AND MEMBRANES FOR ELECTROLYSIS Non-Final OA UOP LLC
17882573 METHOD FOR CHEMICAL UPCYCLING OF RESINS CONTAINING ESTER BONDS Non-Final OA ZHEJIANG UNIVERSITY
18037183 METHOD AND SYSTEM FOR RECYCLING POLYVINYLIDENE CHLORIDE CONTAINING COMPOSITE MATERIAL Non-Final OA Cryovac, LLC
17798411 PROCESS FOR TREATING A POLYAMIDE-BASED COMPOSITION Non-Final OA ARKEMA FRANCE
18042828 SURFACE TREATMENT LIQUID AND SURFACE TREATMENT METHOD Non-Final OA TOKYO OHKA KOGYO CO., LTD.
18260248 METHOD OF REUSING RESIN SHAPED PRODUCT Non-Final OA ZEON CORPORATION
18020286 REMOVAL OF COLOR FROM POLYMERIC MATERIALS Non-Final OA ALADDIN MANUFACTURING CORPORATION
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.
17785614 FLAME, SMOKE AND TOXICITY RETARDANT COMPOSITION FOR USE IN POLYURETHANE/POLYISOCYANURATE COMPRISING FOAMS Non-Final OA Huntsman International LLC
18005414 REUSE OF BIOPLASTICS IN POLYMERISATION Non-Final OA NOVAMONT S.P.A.
18036924 SHRINKABLE HYDROGELS Non-Final OA UNIVERSITEIT UTRECHT HOLDING B.V.
18266818 RADICAL POLYMERIZATION METHOD, AND METHOD FOR PRODUCING RADICAL-POLYMERIZED FLUORINE-BASED POLYMER Non-Final OA Mitsubishi Materials Electronic Chemicals Co., Ltd.
18256682 METHOD FOR SEPARATION OF A PLASTIC ARTICLE Non-Final OA XCRUSHER
18253439 IMPROVED METHOD FOR RECYCLING PET BY ALCOHOLYSIS Non-Final OA RECYC'ELIT
17826748 Crosslinkable and foamable composition, foam obtained by the same, composition for foaming and use thereof Final Rejection LCY CHEMICAL CORP.

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