Prosecution Insights
Last updated: October 26, 2026

Jeremy S Duffield, USPTO Patent Examiner

Listed by the USPTO as DUFFIELD, JEREMY S

Tech Center 2400 • Art Units: 2424 2427 2498

This examiner grants 49% of resolved cases

Analysis

In Tech Center 2400 and Art Unit 2424, DUFFIELD, JEREMY S has resolved 451 cases. The allowance rate is 49.4%, with an interview lift of 52.6%. The median time to allowance is 1362 days. The figures show a limited allowance outcome, a substantial interview association, and an extended median prosecution period, making response strategy and timing important considerations.

The leading companies are Dell Products L.P., NEC Corporation, and Kia Corporation. The leading firms are WOMBLE BOND DICKINSON (US) LLP, AGORA LAW GROUP, PLLC, and Anova Law Group, PLLC. Practitioners may consider carefully prepared interviews as part of the core prosecution plan, while pairing discussion with amendments and written arguments that preserve clear support for the desired claim scope.

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

Performance Statistics

49.4%
Allow Rate
-8.6% vs TC avg
477
Total Applications
+52.6%
Interview Lift
1362
Avg Prosecution Days
Based on 451 resolved cases, 2023–2026

Rejection Statute Breakdown

7.9%
§101 Eligibility
9.2%
§102 Novelty
62.1%
§103 Obviousness
14.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18879881 METHODS AND DEVICES FOR SUPPORTING AUTHENTICATION Final Rejection Telefonaktiebolaget LM Ericsson (publ)
18703523 AUTHENTICATION APPARATUS, MOBILE TERMINAL, AND AUTHENTICATION METHOD Non-Final OA NEC Corporation
18521631 DRIVE VIDEO RECORD SYSTEM AND METHOD OF CONTROLLING THE SAME Final Rejection Kia Corporation
18842026 METHOD, APPARATUS, AND ELECTRONIC DEVICE FOR INTERACTIVE PUBLICATION OF AN INTERFACE BASED ON A PERMISSION Final Rejection Beijing Youzhuju Network Technology Co., Ltd.
19260271 TRUSTWORTHINESS OF A VIDEO DATA STREAM Final Rejection Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
19213741 DATA PROCESSING METHOD AND APPARATUS BASED ON TRUSTED EXECUTION ENVIRONMENT, DEVICE, AND MEDIUM Non-Final OA TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
18609968 METHOD AND APPARATUS TO DELIVER MULTIPLE NAS CONTAINERS VIA A SINGLE ACCESS STRATUM MESSAGE Final Rejection Nokia Technologies Oy
17940299 PROXIMITY-AWARE MULTIFACTOR AUTHENTICATION FOR CONTINUOUS TRUSTED ACCESS Final Rejection Cisco Technology, Inc.
18930052 SHARING OF DIGITAL KEYS AND PERMISSIONS AMONG REAL-WORLD DEVICES Final Rejection Dell Products L.P.
18425220 MANAGING SYSTEM DATA USING OUT-OF-BAND METHODS Final Rejection Dell Products L.P.

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Frequently Asked Questions

What is examiner Jeremy S Duffield's allowance rate?

49.4% of resolved applications examined by Jeremy S Duffield were allowed (451 resolved cases), compared with 68.6% across Art Unit 2424 over the last five years.

Does an interview help with examiner Jeremy S Duffield?

This examiner's interview lift is +52.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jeremy S Duffield take to allow a patent?

Applications allowed by Jeremy S Duffield took 1,362 days on average from filing to allowance.

Which art unit does examiner Jeremy S Duffield work in?

Jeremy S Duffield examines applications in Art Unit 2424 in Tech Center 2400 (Networking & Security).

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