Prosecution Insights
Last updated: May 29, 2026

Examiner: MCKENZIE, THOMAS B

Tech Center 1700 • Art Units: 1731 1776 1797

This examiner grants 58% of resolved cases

Performance Statistics

57.5%
Allow Rate
-7.5% vs TC avg
1,055
Total Applications
+22.7%
Interview Lift
1188
Avg Prosecution Days
Based on 972 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
9.9%
§102 Novelty
79.4%
§103 Obviousness
3.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18199077 NANOFIBER FILTER AND METHOD FOR MANUFACTURING SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18555352 HUMIDITY CONTROL DEVICE AND METHOD OF MANUFACTURING THE SAME Non-Final OA AIRNOV, INC.
18008906 DEVICE FOR FILTERING COOLING AIR OF A TURBOMACHINE TURBINE Non-Final OA SAFRAN AIRCRAFT ENGINES
18148835 GAS DETECTING APPARATUSES WITH INTEGRATED FLOW REGULATING COMPONENTS Non-Final OA HONEYWELL INTERNATIONAL INC.
18253595 FILTER DEVICE, PRODUCTION METHOD THEREFOR, AND AIR CONDITIONER Final Rejection HONDA MOTOR CO., LTD.
18490955 FILTER Final Rejection Murata Manufacturing Co., Ltd.
18005682 HIGH FILTRATION FILTER WITH DISINFECTION, LOW PRESSURE DROP AND REDUCED CAKE FORMATION Non-Final OA THE HONG KONG POLYTECHNIC UNIVERSITY
17698058 PARTICULATE CAPTURING DEVICE AND IMAGE FORMING DEVICE Non-Final OA FUJIFILM BUSINESS INNOVATION CORP.
17698382 PARTICLE CAPTURING DEVICE AND IMAGE FORMING DEVICE Non-Final OA FUJIFILM BUSINESS INNOVATION CORP.
18016258 SYSTEM AND METHOD FOR DEAERATION Final Rejection Donaldson Company, Inc.
17981840 SYSTEM COMPRISING A CONNECTOR FOR COUPLING TO A FLUID FILTER ELEMENT, FLUID FILTER ELEMENT, AND PROCESS FOR PRODUCING SAME Non-Final OA Donaldson Company, Inc.
17767258 FILTER MEDIA LAYERS INCLUDING MIXED DIAMETER FINE FIBERS Final Rejection Donaldson Company, Inc.
17777551 THIOLATE SALT MELT ADDITIVES Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18027699 AIR FILTER MEDIUM, FILTER PLEAT PACK, AND AIR FILTER UNIT Non-Final OA NITTO DENKO CORPORATION
17058700 FUNCTIONAL INSERT FOR NONWOVEN MATERIALS Non-Final OA Zephyros, Inc.
17925960 METHOD AND SYSTEM FOR PRODUCING A CARBONATE-CONTAINING SPECIES-RICH, NITROGEN-CONTAINING SPECIES-FREE SOLUTION Final Rejection ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
16821619 FILTER DIAGNOSTIC SYSTEM AND METHOD Non-Final OA Dust Company, Inc.
18741594 GAS REMOVAL SYSTEM AND METHODS Non-Final OA AILNH, LLC
18090171 SEALING DEVICE FOR A GAS SORPTION ROTOR OF AN AIR TREATMENT SYSTEM AND A GAS SORPTION ROTOR ARRANGEMENT FOR AN AIR TREATMENT SYSTEM Non-Final OA MUNTERS CORPORATION
18428129 DYNAMIC ADSORPTION AND DESORPTION SYSTEM Non-Final OA Mosaic Materials, Inc.
18425438 MULTI-PLY FILTER SCREEN ASSEMBLY FOR USE WITH AN AIR INTAKE OPENING Non-Final OA CAMFIL USA, INC.
18577760 AIR PURIFIER AND PURIFICATION BOOTH FOR PREVENTING INFECTION Non-Final OA International Frontier Technology Laboratory, Inc.
18394356 METHOD FOR MANUFACTURING A DELIQUESCENT DESICCANT MATERIAL, DELIQUESCENT DESICCANT MATERIAL AND USE THEREOF FOR DRYING GASES Non-Final OA UNIVERSIDADE FEDERAL DE MINAS GERAIS - UFMG
18031327 Subsea Composite Vessel Non-Final OA FMC Technologies Do Brasil LTDA
18289512 MESOPOROUS SOLID FOR CONTROLLING HUMIDITY IN ENCLOSED SPACES Non-Final OA CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
18085894 AIR PURIFIER WITH INTELLIGENT SENSORS AND AIRFLOW Non-Final OA FELLOWES, INC.
18287846 AIR PURIFIER Final Rejection TOTAL ASSIST CO., LTD.
18320109 MORPHOLOGICAL IMPROVEMENTS IN FILTER MEDIA Non-Final OA Hollingsworth & Vose Company
18320083 MORPHOLOGICALLY ENHANCED, ADSORBENT FILTER MEDIA Non-Final OA Hollingsworth & Vose Company
18233402 System and Method of Reducing Emissions And Increasing Swell In An Oil Conditioning Process Non-Final OA Maze Environmental LLC

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