Prosecution Insights
Last updated: May 29, 2026

Examiner: HE, QIANPING

Tech Center 1700 • Art Units: 1776

This examiner grants 67% of resolved cases

Performance Statistics

67.0%
Allow Rate
+2.0% vs TC avg
312
Total Applications
+15.4%
Interview Lift
1083
Avg Prosecution Days
Based on 261 resolved cases, 2023–2026

Rejection Statute Breakdown

3.3%
§101 Eligibility
5.0%
§102 Novelty
82.3%
§103 Obviousness
5.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17872711 HALOGEN-SUBSTITUTED 9,9-BIS(4-AMINOPHENYL)FLUORENE BASED POLYIMIDE MEMBRANES FOR GAS SEPARATION APPLICATIONS Final Rejection Saudi Arabian Oil Company
18039577 WASHABLE FILTER BODIES AND METHODS FOR PRODUCING Non-Final OA CORNING INCORPORATED
17976324 CEMENT MIXTURES FOR PLUGGING MULTICELLULAR FILTER BODIES AND METHODS OF MAKING THE SAME Final Rejection CORNING INCORPORATED
18156097 SERVICE COVER FOR INSTALLING AND REMOVING FILTER ELEMENTS OF A FILTER ASSEMBLY Final Rejection Caterpillar Inc.
17922181 FILTER UNIT AND FILTERING METHOD Non-Final OA Siemens Energy Global GmbH & Co. KG
17966604 DEPTH FILTERS AND RELATED METHODS Non-Final OA ENTEGRIS, INC.
18175004 FILTER, GAS SENSOR, AND GAS SENSOR SYSTEM Final Rejection KABUSHIKI KAISHA TOSHIBA
18307767 APPARATUS AND METHOD FOR REMOVING GAS FROM AN INFUSION LINE Non-Final OA CareFusion 303, Inc.
18033113 FILTER PLEAT PACK AND AIR FILTER UNIT Final Rejection NITTO DENKO CORPORATION
17651372 FILTER ASSEMBLY FOR HIGH VOLUME EVACUATION Non-Final OA SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
17956055 APPARATUS AND METHOD FOR AMMONIA WASTEWATER REDUCTION Non-Final OA Air Products and Chemicals, Inc.
18607990 Systems and Methods of Gas Removal from a Wearable Device Non-Final OA QIDNI Labs, Inc.
18432975 SYSTEMS AND METHODS FOR DEHUMIDIFYING AND PURIFYING AIR THROUGH COAL-BASED ELECTROTHERMAL SWING ADSORPTION Non-Final OA CARBON HOLDINGS INTELLECTUAL PROPERTIES, LLC
18174136 Filter System and Filter Element Non-Final OA MANN+HUMMEL GmbH
18568891 METHOD FOR CLEANING A FILTER Non-Final OA Becker Additive Manufacturing Solutions GmbH
18557143 COLD TRAP FOR EXTRACTING CHEMICAL SPECIES BY FREEZE DISTILLATION Non-Final OA Paragon Space Development Corporation
18257726 A FILTER MEDIA Non-Final OA AHLSTROM-MUNKSJÖ OYJ
18326073 AMBIENT AIR PURIFICATION DEVICE Non-Final OA MANN+HUMMEL LIFE SCIENCES & ENVIRONMENT HOLDING SINGAPORE PTE. LTD.
18111132 ALL-DIRECTION FLOW-THROUGH FLOW DIRECTING MEMBER WITH ANGLED BAFFLES Non-Final OA Cummins Filtration Inc.
17947762 ENHANCED MOISTURE CONTROL DEVICES FOR THE PRESERVATION OF PRODUCTS IN CLOSED ENVIRONMENTS Final Rejection Boveda Inc.
17598291 COMPOSITE STRUCTURE, METHOD OF MANUFACTURING THE SAME, AND FILTER MEDIUM CONTAINING THE COMPOSITE STRUCTURE Final Rejection JNC FIBERS CORPORATION

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