Prosecution Insights
Last updated: April 19, 2026

Examiner: CHOU, WILLIAM B

Tech Center 3700 • Art Units: 3779 3795

This examiner grants 73% of resolved cases

Performance Statistics

72.8%
Allow Rate
+2.8% vs TC avg
561
Total Applications
+21.4%
Interview Lift
1385
Avg Prosecution Days
Based on 534 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
23.6%
§102 Novelty
42.0%
§103 Obviousness
24.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18253840 SURGERY SYSTEM, SURGERY CONTROL DEVICE, CONTROL METHOD, AND PROGRAM Non-Final OA SONY GROUP CORPORATION
17203326 IMAGE CAPTURE UNIT IN A SURGICAL INSTRUMENT Non-Final OA Intuitive Surgical Operations, Inc.
18314196 IMAGING SYSTEM FOR ENDOSCOPE Non-Final OA Boston Scientific Scimed, Inc.
17039173 DEVICES, SYSTEMS, AND METHODS FOR POSITIONING A MEDICAL DEVICE WITHIN A BODY LUMEN Final Rejection Boston Scientific Scimed, Inc.
18643780 OVERALL ENDOSCOPIC CONTROL SYSTEM Non-Final OA Asensus Surgical Europe S.à.R.L.
18969197 METHOD, PROGRAM, AND APPARATUS FOR CONTROLLING ENDOSCOPE DEVICE Final Rejection MedlnTech Inc.
17925123 TUBE ASSEMBLY FOR LIVING ORGANISM AND MEASUREMENT APPARATUS FOR LIVING ORGANISM Final Rejection OSAKA UNIVERSITY
17895369 ENDOSCOPIC LENS CLEANING IN A ROBOTIC SURGICAL PROCEDURE Non-Final OA Titan Medical Inc.
17452813 SURGERY ASSISTANCE SYSTEM AND METHOD FOR GENERATING CONTROL SIGNALS FOR VOICE CONTROL OF MOTOR-CONTROLLED MOVABLE ROBOT KINEMATICS OF SUCH A SURGERY ASSISTANCE SYSTEM Final Rejection Aktormed GmbH

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