Prosecution Insights
Last updated: August 17, 2026

Examiner: ZHANG, DUAN

Tech Center 3600 • Art Units: 3685 3697 3699

This examiner grants 61% of resolved cases

Performance Statistics

61.3%
Allow Rate
+9.3% vs TC avg
203
Total Applications
+16.9%
Interview Lift
1112
Avg Prosecution Days
Based on 181 resolved cases, 2023–2026

Rejection Statute Breakdown

27.8%
§101 Eligibility
6.1%
§102 Novelty
48.6%
§103 Obviousness
14.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18428764 DEVICE-SPECIFIC PASSKEY COMMUNICATION SYSTEMS AND TECHNIQUES Final Rejection Wells Fargo Bank, N.A.
18437292 SYSTEM AND METHOD FOR PROCESSING BULK TRANSFER OF DIGITAL ASSETS Final Rejection The Toronto-Dominion Bank
19016799 CARD READER VERIFICATION Final Rejection NCR Corporation
19424359 DEVICE AND METHOD FOR MANAGING ACCESS RIGHTS AND AUTHORIZATIONS Non-Final OA Commissariat à l'Energie Atomique et aux Energies Alternatives
19418458 WEB-BASED WALLET AUTHENTICATION Non-Final OA Docusign, Inc.
19405105 BLOCK PROPAGATION WITH POISONED TRANSACTIONS IN A BLOCKCHAIN NETWORK Non-Final OA nChain Licensing AG
19075221 MULTI-CRITERIA BLOCKCHAIN PROTOCOL Non-Final OA nChain Licensing AG
18573645 TIERED CONSENSUS Final Rejection nChain Licensing AG
18778620 DYNAMIC BLOCKCHAIN TRANSACTION PREFERENCES Non-Final OA Unstoppable Domains Inc.

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