Prosecution Insights
Last updated: May 29, 2026

Examiner: RIOJA, MELISSA A

Tech Center 1700 • Art Units: 1764 1767 1768 1796

This examiner grants 50% of resolved cases

Performance Statistics

49.6%
Allow Rate
-15.4% vs TC avg
924
Total Applications
+54.7%
Interview Lift
1153
Avg Prosecution Days
Based on 854 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
6.6%
§102 Novelty
64.8%
§103 Obviousness
13.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18251943 POLYURETHANES WITH REDUCED ALDEHYDE EMISSION Non-Final OA BASF SE
18032888 POLYMERIZING COMPOSITION, METHOD OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME Non-Final OA BASF SE
18013273 POLYURETHANE FOAMS WITH IMPROVED ACOUSTIC PROPERTIES Final Rejection BASF SE
17905007 Non-primary hydroxyl group based foams Non-Final OA BASF SE
17616216 A REACTIVE COMPOSITION FOR POLYURETHANE FOAM AND USE THEREOF IN AUTOMOBILE PARTS Non-Final OA BASF SE
17045401 FOAMS BASED ON THERMOPLASTIC ELASTOMERS Final Rejection BASF SE
18024141 Polyurethane Foam Composition and Polyurethane Foam Comprising Cured Product Thereof Final Rejection LG Chem, Ltd.
18255435 POLYOL PREMIXES, THERMALLY INSULATING RIGID POLYURETHANE FOAMS AND METHODS FOR THEIR PRODUCTION Non-Final OA Covestro LLC
17670727 ISOPROPYLIDENEDIPHENOL-BASED POLYETHER POLYOLS, PROCESSES FOR THEIR PRODUCTION, AND FOAMS PRODUCED THEREFROM Non-Final OA Covestro LLC
18258624 ENGINEERED WOOD ADHESIVES INCLUDING GLYCEROL OR OLIGOMERS OF GLYCEROL AND ENGINEERED WOOD THEREFROM Non-Final OA CARGILL, INCORPORATED
18274188 HOLLOW MICROBALLOON Non-Final OA TOKUYAMA CORPORATION
18250388 Use of Raw Gel in Formulations on the Basis of Polyurethane Dispersions Non-Final OA COVESTRO DEUTSCHLAND AG
18029248 FOAM SHEET Final Rejection SEKISUI CHEMICAL CO., LTD.
17279321 POLYOLEFIN RESIN FOAM SHEET Non-Final OA SEKISUI CHEMICAL CO., LTD.
18026712 POLYURETHANE BASED POLYMER CONCRETES AND GROUTING MORTARS OF CONTROLLED DENSITY Final Rejection SIKA TECHNOLOGY AG
18265430 PRODUCTION OF POLYURETHANE FOAM Final Rejection EVONIK OPERATIONS GMBH
18264529 POLYESTER POLYOL, URETHANE PREPOLYMER AND POLYURETHANE Non-Final OA KURARAY CO., LTD.
18226411 THREE-DIMENSIONAL PRINTED GAS BLOWN POLYSILOXANE FOAMS Non-Final OA Lawrence Livermore National Security, LLC
18034562 FOAMS COMPRISING BLENDS OF SILICONE FUNCTIONALIZED POLYETHYLENE AND LOW DENSITY POLYETHYLENE Non-Final OA Dow Global Technologies LLC
18013046 POLYURETHANES WITH REDUCED COBALT EXTRACTABLES Final Rejection Dow Global Technologies LLC
17996141 ISOCYANATE-REACTIVE COMPOSITION AND METHOD OF PREPARING POLYURETHANE AND POLYISOCYANURATE FOAMS Final Rejection Dow Global Technologies LLC
17912877 INSULATION DEVICE, DOMESTIC APPLIANCE, AND METHOD Non-Final OA BSH Hausgeräte GmbH
18249839 RUBBER FOAM COMPOSITION, FOAM AND MOLDED ARTICLE Non-Final OA Denka Company Limited
18455503 ALCOHOL-RESISTANT SILICONIZED POLYCARBONATE POLYURETHANES AND MEDICAL DEVICES INCORPORATING THE SAME Non-Final OA Piper Access, LLC
18257454 NOVEL THERMOPLASTIC POLYESTERS AND SYNTHESIS THEREFOR Non-Final OA Eastman Chemical Company
17929054 BIODEGRADABLE COMPOSITIONS AND ARTICLES MADE FROM CELLULOSE ACETATE Non-Final OA Eastman Chemical Company
18095886 POLY(METH)ACRYLATE-BASED PRESSURE-SENSITIVE ADHESIVES COMPRISING AT LEAST ONE ACRYLONITRILE-BUTADIENE RUBBER Final Rejection tesa SE
18039302 AROMATIC POLYESTER POLYOL COMPOUND Final Rejection Huntsman International LLC
18039319 A POLYURETHANE FOAM COMPOSITION COMPRISING AN AROMATIC POLYESTER POLYOL COMPOUND AND PRODUCTS MADE THEREFROM Final Rejection Huntsman International LLC
18032235 ELASTOMERIC POLYURETHANE-POLYUREA COMPRISING WATER BLOWN FOAM HAVING IMPROVED MECHANICAL PROPERTIES Final Rejection Huntsman International LLC

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