Prosecution Insights
Last updated: August 18, 2026

Examiner: RIETH, STEPHEN EDWARD

Tech Center 1700 • Art Units: 1613 1692 1759 1764

This examiner grants 45% of resolved cases

Performance Statistics

45.4%
Allow Rate
-19.6% vs TC avg
715
Total Applications
+32.7%
Interview Lift
1169
Avg Prosecution Days
Based on 659 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
13.8%
§102 Novelty
41.2%
§103 Obviousness
31.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18289073 Method For Preparing Recycled Polycarbonate And Recycled Polycarbonate Non-Final OA LG Chem, Ltd.
18031860 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME Final Rejection LG CHEM, LTD.
18110758 POLYCARBONATE RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE INCLUDING THE SAME Non-Final OA LG CHEM, LTD.
18550450 METHOD FOR PRODUCING FOAM PARTICLES FROM EXPANDED THERMOPLASTIC ELASTOMER Non-Final OA BASF SE
18549509 PROCESS FOR PRODUCING OPEN-CELL RIGID POLYURETHANE FOAMS Non-Final OA BASF SE
18098996 PLASMA POLYMERIZED THIN FILM AND PREPARING METHOD THEREOF Final Rejection RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
18288056 METHOD FOR SEPARATING COLORED RESIN COMPOSITION AND RESIN RECYCLING METHOD Non-Final OA DIC Corporation
17926986 RECOVERING POLYMER FROM THREE-DIMENSIONAL PRINTED OBJECTS Non-Final OA HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
18510774 METHOD OF DESULFURIZING SULFUR-CROSSLINKED RUBBER Non-Final OA NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM
17597586 PROCESS FOR THE PREPARATION OF POLYESTERS WITH RECYCLED MONOMERS FROM PYROLYSIS AND METHANOLYSIS Final Rejection Eastman Chemical Company
18414890 COPOLYESTER AND HOT MELT ADHESIVE Non-Final OA INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
18567188 COMPOSITIONS COMPRISING POST-CONSUMER RECYLED RESIN AND ODOR-ACTIVE ZEOLITE TO MITIGATE TASTE AND ODOR Non-Final OA Dow Global Technologies LLC
17798411 PROCESS FOR TREATING A POLYAMIDE-BASED COMPOSITION Non-Final OA ARKEMA FRANCE
18260248 METHOD OF REUSING RESIN SHAPED PRODUCT Final Rejection ZEON CORPORATION
18005414 REUSE OF BIOPLASTICS IN POLYMERISATION Final Rejection NOVAMONT S.P.A.
18021502 PROCESS AND SYSTEM TO UTILIZE WASTE POLYESTER IN A CONTINUOUS POLYESTER POLYMERIZATION PROCESS Final Rejection AURIGA POLYMERS, INC.

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