Prosecution Insights
Last updated: April 19, 2026

Examiner: BUI, DUNG H

Tech Center 1700 • Art Units: 1758 1772 1773 1775 1776 1797

This examiner grants 78% of resolved cases

Performance Statistics

78.4%
Allow Rate
+13.4% vs TC avg
1312
Total Applications
+24.4%
Interview Lift
965
Avg Prosecution Days
Based on 1227 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
26.8%
§102 Novelty
48.1%
§103 Obviousness
18.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18391319 VENTILATION APPARATUS AND VENTILATION SYSTEM HAVING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18496235 ACCUMULATOR FOR COMPRESSOR Non-Final OA Samsung Electronics Co., Ltd.
18511835 GAS-LIQUID SEPARATION DEVICE FOR AN EBULLATED BED REACTOR Non-Final OA CHEVRON U.S.A. INC.
18314491 Reactor System having Sorbent to Remove Carbon Dioxide Final Rejection Saudi Arabian Oil Company
18298273 SYSTEMS AND METHODS FOR CHILLING A NATURAL GAS STREAM Non-Final OA SAUDI ARABIAN OIL COMPANY
18515506 COMPACT BIPOLAR IONIZER Non-Final OA Carrier Corporation
18347996 CARBON DIOXIDE RECOVERY SYSTEM Non-Final OA DENSO CORPORATION
18363815 GAS SOLUTION SUPPLY APPARATUS Non-Final OA EBARA CORPORATION
18467133 GAS SEPARATION MEMBRANE AND METHOD OF PRODUCING GAS SEPARATION MEMBRANE Non-Final OA SEIKO EPSON CORPORATION
18059844 SYSTEMS AND TECHNIQUES FOR POLYMER PRODUCT WITHDRAWAL Non-Final OA Chevron Phillips Chemical Company LP
18377138 COMPACT SCRUBBER FOR PLASMA ABATEMENT GAS STREAM Non-Final OA Applied Materials, Inc.
18270093 CONTINUOUS CARBON DIOXIDE CONVERSION PROCESS, AND SYSTEM THEREFOR Non-Final OA Korea University Research and Business Foundation
17972094 BORON OXIDE-CONTAINING ADSORBENT AND RELATED METHODS AND DEVICES Non-Final OA ENTEGRIS, INC.
18006014 THIRD-STAGE SYSTEM WITH AUTOMATIC BLEEDING, AND USE THEREOF Final Rejection Petróleo Brasileiro S.A. - Petrobras
18284274 ACIDIC GAS ADSORBENT, METHOD FOR PRODUCING ACIDIC GAS ADSORBENT, AND ACIDIC GAS ADSORPTION DEVICE Non-Final OA NITTO DENKO CORPORATION
18551039 EVAPORATOR AND SEPARATION METHOD USING THE SAME Non-Final OA Hanwha Solutions Corporation
17926713 LID ARRANGEMENT FOR A DUST EXTRACTOR COMPRISING A DUST CYCLONE CONTAINER AND A FINE FILTER SECTION Non-Final OA HUSQVARNA AB
17926675 FILTER ARRANGEMENTS FOR INDUSTRIAL DUST EXTRACTORS Non-Final OA HUSQVARNA AB
18167143 SYSTEMS AND METHODS FOR POWER GENERATION AND AIRCRAFT COMPRISING THE SAME Non-Final OA HONEYWELL INTERNATIONAL INC.
18463129 PASSIVE DEHUMIDIFIER FOR ENVIRONMENT CONTROL UNITS Non-Final OA Textron Innovations, Inc.
17913238 PYROLYSIS GAS PURIFICATION/COOLING DEVICE, PYROLYSIS GAS PURIFICATION/COOLING METHOD, ORGANIC SUBSTANCE PRODUCTION DEVICE, AND METHOD FOR PRODUCING ORGANIC SUBSTANCE Final Rejection SEKISUI CHEMICAL CO., LTD.
18514315 CONE AIR FILTER Final Rejection K&N Engineering, Inc.
18263270 PRESSURE SWING ADSORPTION APPARATUS FOR HIGH PURITY HYDROGEN PURIFICATION FROM AMMONIA DECOMPOSITION AND HYDROGEN PURIFICATION METHOD USING THE SAME Final Rejection KOREA INSTITUTE OF ENERGY RESEARCH
18267745 STORAGE CASE FOR A PORTABLE DEVICE Non-Final OA Dyson Technology Limited
18269458 INVERTER APPARATUS PROVIDED WITH DUST COLLECTING UNIT Final Rejection LS ELECTRIC CO., LTD.
18199411 Apparatus and Method for Carbon Dioxide Recovery Non-Final OA Air Products and Chemicals, Inc.
18743567 METHODS OF ATTACHING A FLAT LAYER TO A HUB OF AN AXIAL FLOW ELEMENT Non-Final OA Cummins Filtration IP, Inc.
18718983 SOLID SORBENT FOR REMOVAL OF CARBON DIOXIDE FROM A CO2-CONTAINING GAS Non-Final OA Sustaera Inc.
18554956 DEVICE AND METHOD FOR SEPARATING PARTICLES FROM AEROSOLS FOR CONDITIONING TEST AEROSOLS FOR PENETRATION MEASUREMENT ON FILTERS Non-Final OA TOPAS GMBH TECHNOLOGIE-ORIENTIERTE PARTIKEL-, ANALYSEN- UND SENSORTECHNIK
18199427 ATMOSPHERIC WATER GENERATION SYSTEMS AND METHODS USING ELECTROSTATIC NUCLEATION OF WATER VAPOR IN AIR Non-Final OA Genesis Systems LLC

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month