Prosecution Insights
Last updated: April 19, 2026

Examiner: LENIHAN, JEFFREY S

Tech Center 1700 • Art Units: 1743 1765 1796

This examiner grants 73% of resolved cases

Performance Statistics

73.1%
Allow Rate
+8.1% vs TC avg
957
Total Applications
+16.8%
Interview Lift
1142
Avg Prosecution Days
Based on 910 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
15.1%
§102 Novelty
43.2%
§103 Obviousness
28.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17921516 OXIDIZED POLYISOBUTENE COMPOUNDS AND METHODS OF MAKING THE SAME Non-Final OA The Regents Of The University Of California
17286172 ADDITIVES TO STABILIZE POLYACRYLAMIDE CO-POLYMER SOLUTIONS UNDER HIGH SHEAR CONDITIONS Final Rejection BASF SE
18026113 THERMOPLASTIC RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE MANUFACTURED USING THE SAME Non-Final OA LG CHEM, LTD.
17771807 METHOD OF PREPARING VINYL CHLORIDE-BASED POLYMER COMPOSITE, VINYL CHLORIDE-BASED POLYMER COMPOSITE, AND VINYL CHLORIDE-BASED POLYMER COMPOSITE COMPOSITION INCLUDING THE COMPOSITE Non-Final OA LG CHEM, LTD.
18121794 RESIN COMPOSITION TO BE CROSS-LINKED AND FOAMED Final Rejection MIZUNO CORPORATION
19113744 BIMODAL HDPE AND POLYETHYLENE BLEND CONTAINING VIRGIN AND RECYCLED HDPE MATERIALS Non-Final OA Dow Quimica Mexicana S.A.de C.V.
18266675 MULTIMODAL POLYETHYLENE Non-Final OA SABIC GLOBAL TECHNOLOGIES B.V.
17311921 Two-Part Phosphate Ester Elastomeric Epoxy Composition and Method of Use Thereof Non-Final OA Zephyros, Inc.
18252284 COMPOSITIONS OF LOW AND HIGH MELT INDEX ETHYLENE/ALPHA-OLEFIN INTERPOLYMERS FOR IMPROVED MECHANICAL PROPERTIES Final Rejection Dow Global Technologies LLC
18272898 FILM MADE FROM C2C3C4 TERPOLYMER - C3C4 COPOLYMER BLEND AND C2C3C4 TERPOLYMER - C3C4 COPOLYMER BLEND Non-Final OA Borealis AG
18004987 Polyolefin Composition With Improved Resistance To High Temperature Final Rejection Borealis AG
17052233 IMPROVING RHEOLOGICAL PROPERTIES OF THERMOPLASTIC POLYOLEFIN COMPOSITIONS Final Rejection Borealis AG
18027475 RESIN COMPOSITION Non-Final OA ZEON CORPORATION
17784100 POLYPROPYLENE-BASED RESIN COMPOSITION AND MOLDED PRODUCT THEREOF Final Rejection PRIME POLYMER CO., LTD.
17627142 COPOLYMERS WITH HARD POLYAMIDE BLOCKS AND SOFT BLOCKS COMPRISING POLYETHYLENE GLYCOL Non-Final OA Arkema France
18118981 3D PRINTED DENTURE Non-Final OA James R. Glidewell Dental Ceramics, Inc.
17614683 Additives, Corresponding Uses, Insulation Systems, and Electric Machines Non-Final OA Innomotics GmbH
17612139 POLYAMIDE-BASED RESIN COMPOSITION FOR INJECTION MOLDING AND SLIDING COMPONENT FORMED THEREFROM Final Rejection TOYOBO CO., LTD.
18550502 CHLOROPRENE POLYMER LATEX COMPOSITION, AND DIP MOLDED BODY Non-Final OA Denka Company Limited
17780323 RESIN PELLET, METHOD OF MANUFACTURING RESIN PELLET, GRAVURE INK AND WIRE COATING MATERIAL Non-Final OA DOW-MITSUI POLYCHEMICALS CO., LTD.
17997780 MASTERBATCH, RESIN COMPOSITION, POLYOLEFIN RESIN FILM AND PRODUCTION METHOD THEREFOR, AND LAMINATE FILM Non-Final OA Takemoto Yushi Kabushiki Kaisha
18550477 HIGH DENSITY POLYETHYLENE COMPOSITION Non-Final OA NOVA Chemicals (International) S.A.
17260151 METHOD FOR THE PRODUCTION OF STABLE POLYOXYMETHYLENE COPOLYMERS (CPOM) Non-Final OA Kolon Plastics Inc.
17873916 PROPYLENE-ETHYLENE COPOLYMERS AND ADHESIVES CONTAINING PROPYLENE-ETHYLENE COPOLYMERS Non-Final OA Synthomer Adhesive Technologies LLC
17945336 POLYETHYLENE COMPOSITION FOR BLOW MOLDING HAVING AN IMPROVED SWELL BEHAVIOR Final Rejection Basell Polyolefine GmbH
18248996 PROPYLENE-BUTENE COPOLYMER, PREPARATION METHOD THEREFOR AND USE THEREOF Non-Final OA BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
18044331 HEAT STABLE ETHYLENE COPOLYMER RUBBER BLENDS Final Rejection ARLANXEO NETHERLANDS B.V.
17925497 ETHYLENE-COPOLYMER RUBBERS Non-Final OA ARLANXEO NETHERLANDS B.V.
17770228 POLYPROPYLENE MODIFYING AGENT AND PREPARATION METHOD THEREFOR, POLYPROPYLENE COMPOSITION, AND POLYPROPYLENE MATERIAL AND PREPARATION METHOD THEREFOR Final Rejection NATIONAL INSTITUTE OF CLEAN-AND-LOW-CARBON ENERGY
17634388 COMPOSITES AND USES THEREOF Non-Final OA SOLUTUM TECHNOLOGIES LTD

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month