Prosecution Insights
Last updated: August 18, 2026

Examiner: POON, DANA LEE

Tech Center 4100 • Art Units: 3723 4100

This examiner grants 55% of resolved cases

Performance Statistics

55.3%
Allow Rate
-4.7% vs TC avg
222
Total Applications
+42.3%
Interview Lift
1042
Avg Prosecution Days
Based on 159 resolved cases, 2023–2026

Rejection Statute Breakdown

1.5%
§101 Eligibility
19.8%
§102 Novelty
52.6%
§103 Obviousness
23.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18828284 ROBOT CLEANER STATION Non-Final OA LG ELECTRONICS INC.
18845123 VACUUM CLEANER STATION Non-Final OA LG ELECTRONICS INC.
18826971 ROBOT CLEANER STATION Non-Final OA LG ELECTRONICS INC.
18037481 CLEANER SYSTEM Non-Final OA LG ELECTRONICS INC.
18230528 CHEMICAL MECHANICAL POLISHING (CMP) APPARATUS AND METHOD OF CONTROLLING THEREOF Final Rejection SAMSUNG ELECTRONICS CO., LTD.
18793244 RANDOM ORBIT SANDER WITH ANGLED BATTERY ORIENTATION Non-Final OA MILWAUKEE ELECTRIC TOOL CORPORATION
18598433 Cleaning System Non-Final OA APPLE INC.
18715784 APPARATUS AND HAIRBRUSH FOR ASSESSING HAIR CHARACTERISTICS Non-Final OA BASF SE
18658298 EXTRACTION CLEANER Non-Final OA SHARKNINJA OPERATING LLC
19313019 SURFACE CLEANING APPARATUS Non-Final OA Omachron Intellectual Property Inc.
18372999 SURFACE CLEANING APPARATUS Final Rejection Omachron Intellectual Property Inc.
18113838 SURFACE CLEANING APPARATUS Final Rejection Omachron Intellectual Property Inc.
17691987 BRACKET DESIGNS FOR ULTRASONIC LENS CLEANING Non-Final OA TEXAS INSTRUMENTS INCORPORATED
17068375 System and Method of Chemical Mechanical Polishing Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
17735021 Chemical Mechanical Polishing With Die-Based Modification Final Rejection Applied Materials, Inc.
17999392 DRIVERLESS TRANSPORT VEHICLE WITH IMPROVED MAINTAINABILITY Non-Final OA Continental Automotive Technologies GmbH
17347824 DRESSING APPARATUS AND DRESSING METHOD FOR SUBSTRATE REAR SURFACE POLISHING MEMBER Final Rejection Tokyo Electron Limited
17906362 Abrasive Article Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
17250670 A SYSTEM FOR MONITORING ONE OR MORE OF AN ABRADING TOOL, A CONSUMABLE ABRASIVE PRODUCT AND A WORKPIECE Final Rejection 3M INNOVATIVE PROPERTIES COMPANY
17391206 GEARING AND CRANKSHAFT ASSEMBLY FOR POWER TOOLS Final Rejection Snap-on Incorporated
18035092 ROBOTIC SURFACE TREATING SYSTEM Non-Final OA Dyson Technology Limited
18453465 DRAIN CLOG REMOVER Non-Final OA HANGZHOU GREAT STAR INDUSTRIAL CO., LTD.
17616758 BLASTING MEDIUM AND METHOD OF SURFACE TREATMENT USING SUCH A BLASTING MEDIUM Final Rejection SANFRAN AIRCRAFT ENGINES

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