Prosecution Insights
Last updated: October 02, 2026

Examiner: CHOU, WILLIAM B

Tech Center 3700 • Art Units: 3779 3795

This examiner grants 73% of resolved cases

Analysis

Examiner William B Chou operates within Tech Center 3700 and Art Unit 3779, where he has managed 544 resolved cases. His overall allowance rate stands at 72.6 percent. This figure suggests a relatively high frequency of successful outcomes for applicants navigating his docket in this specific technical area.

The data highlights a significant interview lift of 20.6 percent. This indicates that engaging in direct communication with the examiner may substantially improve the probability of securing an allowance compared to cases without such interaction. Practitioners should consider this strategy to overcome potential rejections and clarify technical nuances in the 544 resolved cases he has handled in Tech Center 3700.

The median days to allowance for cases under his review is 1331. This timeline provides a benchmark for applicants to set expectations regarding the duration of the prosecution process. Balancing the 72.6 percent allowance rate against this 1331-day timeframe is essential for strategic planning in Art Unit 3779.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

72.6%
Allow Rate
+2.6% vs TC avg
567
Total Applications
+20.6%
Interview Lift
1331
Avg Prosecution Days
Based on 544 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
21.0%
§102 Novelty
48.9%
§103 Obviousness
21.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19021807 ACTUATOR DEVICES AND SYSTEMS Non-Final OA Boston Scientific Scimed, Inc.
18314196 IMAGING SYSTEM FOR ENDOSCOPE Non-Final OA Boston Scientific Scimed, Inc.
17709001 SYSTEM AND METHOD FOR TISSUE CONTACT DETECTION AND FOR AUTO-EXPOSURE AND ILLUMINATION CONTROL Non-Final OA Intuitive Surgical Operations, Inc.
17811863 WIRELESS ENDOSCOPIC CAMERA WITH IMAGE COMPRESSION Final Rejection Stryker Corporation
16652968 STEERABLE CATHETER FLEXIBLE ROBOTIC SYSTEM FOR USE WITH ENDOSCOPES Non-Final OA The Regents of the University of California
17811099 CAMERA CONTROL Non-Final OA CMR SURGICAL LIMITED
17811098 CAMERA CONTROL Non-Final OA CMR SURGICAL LIMITED
16669843 TIP FOR AN OPTICAL SCANNER Non-Final OA 3SHAPE A/S
18496253 IMAGE INPAINTING OF IN-VIVO IMAGES Non-Final OA Given Imaging LTD.
17925123 TUBE ASSEMBLY FOR LIVING ORGANISM AND MEASUREMENT APPARATUS FOR LIVING ORGANISM Final Rejection OSAKA UNIVERSITY
18083209 Compact Robotic Endoscope Non-Final OA MicronVision Corp.

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