Prosecution Insights
Last updated: October 02, 2026

Examiner: WILLIAMS, DON J

Tech Center 2800 • Art Units: 2878

This examiner grants 84% of resolved cases

Analysis

Don J. Williams is an examiner in Tech Center 2800, Art Unit 2878. The examiner has 902 resolved cases, with an allowance rate of 83.9%. The median days to allowance for these cases is 995, which serves as a temporal guide for practitioners.

The interview lift is 5.1%, indicating a modest increase in the probability of allowance following an interview compared to the 83.9% baseline. This 5.1% lift suggests that interviews can still provide a benefit even when the base rate is high. With 902 resolved cases, the data offers a large statistical basis for predicting outcomes. In Tech Center 2800, this examiner's specific focus in Art Unit 2878 involves technical subject matter that may contribute to these metrics. The 995 median days to allowance and 5.1% interview lift suggest a relatively predictable environment.

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

Performance Statistics

83.9%
Allow Rate
+15.9% vs TC avg
911
Total Applications
+5.1%
Interview Lift
995
Avg Prosecution Days
Based on 902 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
33.2%
§102 Novelty
56.7%
§103 Obviousness
5.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18959357 Monolithic Silicon Photomultiplier Array Final Rejection Waymo LLC
18771757 IMAGING DEVICE Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
19139464 ENCODER APPARATUS Non-Final OA RENISHAW PLC
19136150 LIGHT SOURCE ARRANGEMENT FOR IMPROVED SENSITIVITY MEASUREMENTS OF AMBIENT LIGHT AND COLOR SENSORS AND METHOD FOR PROVIDING SUCH A LIGHT SOURCE ARRANGEMENT Non-Final OA ams-OSRAM Asia Pacific Pte. Ltd.
19172014 LIGHT DETECTION DEVICE Non-Final OA HAMAMATSU PHOTONICS K.K.

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