Prosecution Insights
Last updated: October 26, 2026

William B Bunker, USPTO Patent Examiner

Listed by the USPTO as BUNKER, WILLIAM B

Tech Center 3600 • Art Units: 3691

This examiner grants 80% of resolved cases

Analysis

BUNKER, WILLIAM B is assigned to technology center 3600 and art unit 3691. The profile includes 233 resolved cases, an allowance rate of 79.8%, a 94.4% interview lift, and a median of 1001 days to allowance. The interview figure is the strongest reported prosecution signal in this profile, indicating that examiner discussions may be especially important when paired with focused claim amendments and clear issue framing.

The listed companies are The Pnc Financial Services Group Inc., Actimize Ltd., and Capital One Services LLC. The listed firms are FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER, BANNER & WITCOFF, LTD, and Kilpatrick Townsend & Stockton LLP - West Coast. Practitioners can use the financial-technology context to prepare targeted interviews and to coordinate responses with the reported allowance timeline.

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

Performance Statistics

79.8%
Allow Rate
+27.8% vs TC avg
260
Total Applications
+94.4%
Interview Lift
1001
Avg Prosecution Days
Based on 233 resolved cases, 2023–2026

Rejection Statute Breakdown

40.8%
§101 Eligibility
3.8%
§102 Novelty
49.1%
§103 Obviousness
3.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18918974 SYSTEMS AND METHODS OF FRAUD PREVENTION FOR CROSS-BORDER TRANSACTIONS Final Rejection Capital One Services, LLC
18738691 SYSTEMS AND METHODS FOR VALIDATING ASSET DESTINATIONS IN BLOCKCHAIN NETWORKS Final Rejection Capital One Services, LLC
18989507 SYSTEMS AND METHODS FOR CONTINUOUS EVENT MONITORING, IDENTIFICATION OF RISK SIGNALS, AND ACCELERATION OF FRAUD RISK ANALYSIS Final Rejection The PNC Financial Services Group, Inc.
18609691 SYSTEMS AND METHODS FOR CONTINUOUS EVENT MONITORING, IDENTIFICATION OF RISK SIGNALS, AND ACCELERATION OF FRAUD RISK ANALYSIS Final Rejection The PNC Financial Services Group, Inc.

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Frequently Asked Questions

What is examiner William B Bunker's allowance rate?

79.8% of resolved applications examined by William B Bunker were allowed (233 resolved cases), compared with 39.0% across Art Unit 3691 over the last five years.

Does an interview help with examiner William B Bunker?

This examiner's interview lift is +94.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner William B Bunker take to allow a patent?

Applications allowed by William B Bunker took 1,001 days on average from filing to allowance.

Which art unit does examiner William B Bunker work in?

William B Bunker examines applications in Art Unit 3691 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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