Prosecution Insights
Last updated: October 02, 2026

Examiner: BOLTON, WILLIAM A

Tech Center 2800 • Art Units: 2831 2833 2837

This examiner grants 89% of resolved cases

Analysis

William A. Bolton operates in Tech Center 2800 and Art Unit 2831, where he has handled 774 resolved cases. His allowance rate of 89.3% is notably high, suggesting a favorable environment for patent applicants. The interview lift of 5.7% is positive, though it indicates that interviews provide a smaller marginal benefit compared to other examiners. The median days to allowance is 675, which is the timeframe for reaching a grant in his docket. This 675-day metric is useful for applicants prioritizing speed in their patent strategy.

With 774 resolved cases, the data offers a stable view of his examination patterns. The 89.3% allowance rate indicates that the vast majority of cases result in a patent. The 5.7% lift from interviews remains a tool for clarification. The median days to allowance serves as a primary indicator of his docket's speed. These statistics from Art Unit 2831 provide a clear picture of the expected prosecution experience and suggest a highly efficient path to grant.

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

Performance Statistics

89.3%
Allow Rate
+21.3% vs TC avg
786
Total Applications
+5.7%
Interview Lift
675
Avg Prosecution Days
Based on 774 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
30.1%
§102 Novelty
54.9%
§103 Obviousness
10.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18729399 CONTACTOR WITH ARC GUIDES AND PROTECTION INTEGRATED INTO THE ARC GUIDES, CORRESPONDING SYSTEM AND AIRCRAFT Non-Final OA SAFRAN ELECTRICAL & POWER
18767165 GAS CIRCUIT BREAKER Non-Final OA TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
18441707 ARC CHUTE FOR AN ELECTRICAL SWITCH Final Rejection Eaton Intelligent Power Limited
18836805 ELECTRIC CIRCUIT BREAKER DEVICE Non-Final OA Daicel Corporation
18718806 SWITCHING DEVICE Non-Final OA Mitsubishi Electric Corporation
18641657 ELECTRICAL ASSEMBLY Final Rejection Siemens Aktiengesellschaft
18693024 PRODUCTION PROCESS FOR A CONTACT ELEMENT FOR VACUUM SWITCHES, CONTACT ELEMENT AND VACUUM SWITCH Final Rejection Siemens Aktiengesellschaft
18725903 SWITCHING DEVICE WITH AN ISOLATING OR EARTHING FUNCTION Non-Final OA Siemens Energy Global GmbH & Co. KG
18730890 FAST EARTHING SWITCH FOR INTERRUPTING NON-SHORT-CIRCUIT CURRENTS Non-Final OA Hitachi Energy Ltd

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