Prosecution Insights
Last updated: April 19, 2026

Examiner: BERNS, DANIEL J

Tech Center 1700 • Art Units: 1734 1736 1771 1793

This examiner grants 73% of resolved cases

Performance Statistics

72.8%
Allow Rate
+7.8% vs TC avg
833
Total Applications
+34.7%
Interview Lift
1009
Avg Prosecution Days
Based on 808 resolved cases, 2023–2026

Rejection Statute Breakdown

2.8%
§101 Eligibility
21.5%
§102 Novelty
37.8%
§103 Obviousness
28.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18962767 ACTIVE CURING SYSTEMS AND METHODS FOR CONCRETE MANUFACTURING BY CARBON DIOXIDE SEQUESTRATION Final Rejection The Regents of the University of California
18603579 CATALYST PELLETS THAT INCLUDE POLYGONAL PRISMATIC BODIES, PACKED BED REACTORS INCLUDING THE SAME, AND METHODS FOR HYDROPROCESSING UTILIZING THE SAME Non-Final OA Saudi Arabian Oil Company
18146884 DIGLYCOLAMINE PROCESSING FOLLOWING ACID GAS REMOVAL FROM A GAS STREAM Non-Final OA SAUDI ARABIAN OIL COMPANY
18266861 PROCESS FOR PRODUCING SUPERABSORBENT PARTICLES Non-Final OA BASF SE
18361657 POLYMERIC MATERIALS FOR CARBON DIOXIDE CAPTURE Non-Final OA ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
18193473 NITROGEN OXIDE REMOVING DENITRIFICATION CATALYST HAVING HIGH DURABILITY AGAINST SULFUR DIOXIDE, METHOD FOR PREPARING THE SAME, AND METHOD FOR REMOVING NITROGEN OXIDE USING THE SAME Final Rejection KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
18304921 METHOD AND SYSTEM FOR PRE-PURIFICATION OF A FEED AIR STREAM Non-Final OA PRAXAIR TECHNOLOGY, INC.
18036751 INTEGRATED PROCESS AND SYSTEM FOR MEASUREMENT AND TREATMENT OF TOXIC GASES IN DEEP NATURAL GAS Non-Final OA PetroChina Company Limited
17796625 PROCESS AND PLANT FOR GAS MIXTURES CONTAINING ACID GAS TREATMENT Final Rejection ENI S.p.A.
18611398 Sodium Hydroxide Production with Carboxylic Acid and Sulfur Dioxide Intermediates Non-Final OA INNOVATOR ENERGY, LLC
18032614 EXHAUST GAS PURIFICATION CATALYST DEVICE Non-Final OA CATALER CORPORATION
18246323 OZONE SCRUBBER AND OZONE SCRUBBING METHOD Non-Final OA SUEZ GROUPE
18044598 AQUEOUS LIQUID SORBENT Non-Final OA COMPACT CARBON CAPTURE AS
18015175 A METHOD AND SYSTEM FOR THE REMOVAL OF CARBON DIOXIDE FROM SOLVENTS USING LOW-GRADE HEAT Non-Final OA CARBON CLEAN SOLUTIONS LIMITED
17905512 Amine-functionalized Cellulose Polymers for CO2 Capture Non-Final OA The Hong Kong Research Institute of Textiles and Apparel Limited

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