Prosecution Insights
Last updated: May 29, 2026

Examiner: TSUI, ALFRED H

Tech Center 3600 • Art Units: 3621 3626 3671 3681 3685

This examiner grants 31% of resolved cases

Performance Statistics

31.1%
Allow Rate
-20.9% vs TC avg
235
Total Applications
+33.8%
Interview Lift
1573
Avg Prosecution Days
Based on 193 resolved cases, 2023–2026

Rejection Statute Breakdown

4.4%
§101 Eligibility
5.4%
§102 Novelty
87.3%
§103 Obviousness
2.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18540559 SNOW WING LINKAGE Non-Final OA Caterpillar Inc.
18470692 CORNER SEGMENT Final Rejection Caterpillar Inc.
18436386 PLANTER FLEXION IDENTIFICATION Non-Final OA DEERE & COMPANY
18008243 WORK MACHINE Final Rejection KOMATSU LTD.
18376036 WORKING VEHICLE Non-Final OA TAKEUCHI MFG. CO., LTD.
18528161 360 PLANT IMAGE CAPTURING SYSTEM AND RELATED METHODS Non-Final OA SOUTH DAKOTA BOARD OF REGENTS
18041786 Construction Machine Final Rejection JDC Corporation
18326595 STABLE OPERATION OF A DISC TILLAGE TOOL AT HIGH OPERATIONAL SPEEDS Final Rejection KUHN KRAUSE, INC.
18528552 PIVOTING ROBOTIC PLANTER Non-Final OA NUtech Ventures
18569966 AGRICULTURAL MACHINE COMPRISING A SUCKER-REMOVING DEVICE ADAPTED TO REMOVE SUCKERS FROM A VEGETABLE PLANT Non-Final OA Spolgreen SRL
18557712 DRILLING MACHINE HAVING A GRAB-BUCKET CHASSIS PROVIDED WITH A QUICK-RELEASE MILLING DEVICE Final Rejection SOLETANCHE FREYSSINET
18263012 AUTONOMOUS AGRICULTURAL CARRIER VEHICLE AND AUTONOMOUS AGRICULTURAL MACHINE Final Rejection Horsch Maschinen GmbH
18035897 TILT BUCKET ASSEMBLY FOR AN EXCAVATOR Final Rejection AMI Attachments Inc.
18110709 SWEEPING BLADE DEVICE AND SWEEPING BLADE ASSEMBLY FOR A VEHICLE Non-Final OA GESTION PIHM INC.
18159401 GRADER Non-Final OA WINDHAM INDUSTRIES, INC.
18078427 SUBMERSIBLE DRAG BARGE Non-Final OA CASHMAN DREDGING AND MARINE CONTRACTING, CO., LLC
17778768 SNOW PLOW ROTATING SIDEWALL WITH SUSPENSION Non-Final OA 9091-4532 Québec inc.

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