Prosecution Insights
Last updated: April 19, 2026

Examiner: TURNER, SONJI

Tech Center 1700 • Art Units: 1776 1797

This examiner grants 74% of resolved cases

Performance Statistics

73.9%
Allow Rate
+8.9% vs TC avg
677
Total Applications
+22.2%
Interview Lift
1065
Avg Prosecution Days
Based on 635 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
27.4%
§102 Novelty
37.7%
§103 Obviousness
29.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18212544 AIR PURIFIER Non-Final OA Samsung Electronics Co., Ltd.
18070424 VENTILATION DEVICE Final Rejection Mahle International GmbH
18118843 AIR CONDITIONER Final Rejection LG ELECTRONICS INC.
18697525 CARBON CAPTURE SYSTEMS AND METHODS Non-Final OA Massachusetts Institute of Technology
18414490 FILTER HAVING A COIL ARRANGEMENT AND FILTER ASSEMBLY HAVING SUCH A FILTER Non-Final OA Carl Freudenberg KG
18477474 FILTERS WITH ELECTROSTATIC FILTERING CAPABILITIES Non-Final OA DelStar Technologies, Inc.
19183375 ACTIVE FIELD POLARIZED MEDIA AIR CLEANING DEVICE Final Rejection HENGST SE
18572308 DUST COLLECTION UNIT, AND ELECTRIC DUST COLLECTION APPARATUS COMPRISING SAME Non-Final OA Hanon Systems
18571552 DUST COLLECTION UNIT FOR ELECTRIC PRECIPITATOR AND ELECTRIC PRECIPITATOR INCLUDING SAME Non-Final OA Hanon Systems
18284565 ELECTRIFICATION UNIT AND ELECTROSTATIC PRECIPITATOR COMPRISING SAME Non-Final OA Hanon Systems
19012175 AIR PURIFICATION DEVICE AND CONTROL METHOD THEREOF Non-Final OA AirQuality Technology (Shanghai) Co., Ltd.
18064986 MEMBRANE FOR COLLECTING AIRBORNE PARTICLES Non-Final OA Commissariat à l'Energie Atomique et aux Energies Alternatives
18277951 Air Treatment Device Non-Final OA BELIMO Holding AG
18036369 FILTER MEDIUM COMPRISING A NONWOVEN ELECTRET Final Rejection Neenah Gessner GMBH
17585731 METHOD FOR DETECTING AND FILTERING INDOOR POLLUTED GAS Non-Final OA MICROJET TECHNOLOGY CO., LTD.
18393470 ELECTRICAL DISCHARGE TYPE AIR CLEANER Non-Final OA GONGGONG CO., LTD.
18208847 ELECTROSTATIC PRECIPITATOR ASSEMBLY AND ELECTROSTATIC AIR CLEANER WITH INTEGRAL IONIZATION ELEMENTS Final Rejection AGENTIS AIR LLC
18205542 AIR PURIFICATION DEVICE AND AIR PURIFICATION SYSTEM, AND METHOD FOR CLEANING AN AIR PURIFICATION DEVICE AND AIR PURIFICATION SYSTEM Non-Final OA DORNIER NO LIMITS GMBH
18204930 Electrostatic Precipitator Air Purifier Devices for Removing Particulate Matter Non-Final OA Chimney Cherry Incorporated
18148545 PERSONAL RECHARGEABLE PORTABLE IONIC AIR PURIFIER Non-Final OA Headwaters, Inc.
18013320 DEVICE FOR TREATING WASTE FLUIDS AND METHOD OF IMPLEMENTING THE SAME Non-Final OA KEREN OXI LTD.
17933351 AIR IONIZATION SYSTEM FOR A TRANSIT VEHICLE Final Rejection Jackson Control Co., Inc.
17646086 AIR PURIFYING SYSTEM Final Rejection NuWave, LLC

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