Prosecution Insights
Last updated: August 18, 2026

Examiner: SEIFU, LESSANEWORK T

Tech Center 3700 • Art Units: 1637 1692 1731 1732 1735 1736 1774 1797 3753

This examiner grants 79% of resolved cases

Performance Statistics

79.1%
Allow Rate
+9.1% vs TC avg
1,098
Total Applications
+1.0%
Interview Lift
844
Avg Prosecution Days
Based on 1066 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
26.0%
§102 Novelty
37.4%
§103 Obviousness
29.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18301257 FOOD PROCESSING APPARATUS Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
17627952 Precursor for Positive Electrode Active Material, Manufacturing Method Thereof, And Manufacturing Apparatus Thereof Final Rejection LG Chem, Ltd.
17937619 METHOD FOR REDUCING ENERGY AND WATER DEMANDS OF SCRUBBING CO2 FROM CO2-LEAN WASTE GASES Non-Final OA SAUDI ARABIAN OIL COMPANY
18162429 INITIATOR PARTICLE FOR DNA SYNTHESIS Final Rejection Lenovo (Singapore) Pte. Ltd.
18274615 APPARATUSES AND METHODS FOR PRODUCING SOL, GEL AND SILICA POROUS BODY Non-Final OA MITSUI MINING & SMELTING CO., LTD.
18468567 DEPOLYMERIZATION OF RECOVERED PLASTIC MATERIALS Non-Final OA ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
18975462 HIGH FREQUENCY DIRECT ELECTRICAL HEATING Non-Final OA Schneider Electric USA, Inc.
18287080 Electrical Heaters For Exhaust Aftertreatment Systems and Assemblies Non-Final OA CORNING INCORPORATED
17851293 TREATMENT OF PLASTIC-DERIVED OIL Non-Final OA SHELL USA, INC.
18272425 SYSTEM FOR PRODUCING HYDROCARBON COMPOUND AND METHOD FOR PRODUCING HYDROCARBON COMPOUND Non-Final OA MITSUBISHI GAS CHEMICAL COMPANY, INC.
18049085 METHOD AND APPARATUS FOR PREPARATION OF ALKYLENE CARBONATE USING POLYAMINE-HETEROGENEOUS CATALYST Final Rejection KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
18376429 CHEMICAL TEST APPARATUS AND SUBSTRATE PROCESSING APPARATUS Non-Final OA SEMES CO., LTD.
18257364 RISERS DESIGNED TO ACCOMMODATE THERMAL EXPANSION Non-Final OA Dow Global Technologies LLC
17997716 PROCESSES FOR REDUCING THE RATE OF PRESSURE DROP INCREASE IN A VESSEL Final Rejection Dow Technology Investments LLC

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