Prosecution Insights
Last updated: October 26, 2026

Anthony Derrell Barfield, USPTO Patent Examiner

Listed by the USPTO as BARFIELD, ANTHONY DERRELL

Tech Center 3600 • Art Units: 3636

This examiner grants 80% of resolved cases

Analysis

BARFIELD, ANTHONY DERRELL is assigned to Tech Center 3600 and Art Unit 3636. The profile includes 1242 resolved cases, an 80.2% allowance rate, and a median of 848 days to allowance. The large record and high allowance rate show that most recorded matters reached allowance, with a median timeline that remains important for filing strategy.

The interview lift is 13.9%, indicating a limited positive interview signal. The listed companies are Wonderland Switzerland AG, Ts Tech Co., Ltd., and Lear Corporation. The leading firms are Volpe Koenig - Wonderland, ALSTON & BIRD LLP, and Blanchard Horton PLLC. Practitioners may rely primarily on clear written claim positions and use interviews for focused clarification.

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

Performance Statistics

80.2%
Allow Rate
+28.2% vs TC avg
1,278
Total Applications
+13.9%
Interview Lift
848
Avg Prosecution Days
Based on 1242 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
39.5%
§102 Novelty
41.7%
§103 Obviousness
15.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18829477 WELDING TUBES IN MULTI-CHAMBER CELLS Non-Final OA LEAR CORPORATION
18319698 VEHICLE SEAT FLAP FOR CONCEALING FRAME Final Rejection Lear Corporation
18802487 METHOD FOR ADJUSTING A VEHICLE SEAT CONFIGURATION INSIDE A VEHICLE Non-Final OA Volvo Car Corporation
19079831 Child Safety Seat Non-Final OA Wonderland Switzerland AG
19074742 MISUSE PREVENTING MECHANISM AND ROTATABLE CHILD SAFETY SEAT Non-Final OA Wonderland Switzerland AG
19098745 SEAT Non-Final OA TS TECH CO., LTD.
19109960 SEAT FOR SADDLE-RIDE TYPE VEHICLE Non-Final OA TS TECH CO., LTD.
18873029 ELECTRIC TOILET SEAT LIFT Non-Final OA ZHEJIANG JIECANG LINEAR MOTION TECHNOLOGY CO., LTD.

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Frequently Asked Questions

What is examiner Anthony Derrell Barfield's allowance rate?

80.2% of resolved applications examined by Anthony Derrell Barfield were allowed (1,242 resolved cases), compared with 64.2% across Art Unit 3636 over the last five years.

Does an interview help with examiner Anthony Derrell Barfield?

This examiner's interview lift is +13.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Anthony Derrell Barfield take to allow a patent?

Applications allowed by Anthony Derrell Barfield took 848 days on average from filing to allowance.

Which art unit does examiner Anthony Derrell Barfield work in?

Anthony Derrell Barfield examines applications in Art Unit 3636 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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