Prosecution Insights
Last updated: October 27, 2026

Caroline N Butcher, USPTO Patent Examiner

Listed by the USPTO as BUTCHER, CAROLINE N

Tech Center 3600 • Art Units: 3612 3676

This examiner grants 81% of resolved cases

Analysis

BUTCHER, CAROLINE N handles cases in USPTO Technology Center 3600 and art unit 3612. The record includes 819 resolved cases and an 81.2% allowance rate. The median time to allowance is 945 days, which calls for deliberate prosecution scheduling even though the allowance result is favorable within this profile.

The reported interview lift is 13.3%. The listed companies are MAZDA MOTOR Corporation, Kia Corporation, and Webasto SE, while FITCH, EVEN, TABIN & FLANNERY, LLP, HAUPTMAN HAM, LLP, and Studebaker Brackett PLLC are the identified firms. The concentration in automotive applicants makes clear technical framing and careful treatment of system interactions useful. Practitioners should also consider timing when coordinating examination with vehicle development and supplier portfolios.

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

Performance Statistics

81.2%
Allow Rate
+29.2% vs TC avg
858
Total Applications
+13.3%
Interview Lift
945
Avg Prosecution Days
Based on 819 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
19.5%
§102 Novelty
50.1%
§103 Obviousness
26.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
15303717 CONTROLLING A DOWNHOLE TOOL ON A DOWNHOLE CABLE Non-Final OA Halliburton Energy Services, Inc.
19013181 VEHICLE FRONT PART STRUCTURE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
19057387 FRAME MEMBER FOR VEHICLE Non-Final OA MAZDA MOTOR CORPORATION
18888597 NOISE INSULATION STRUCTURE OF VEHICLE FRAME Non-Final OA MAZDA MOTOR CORPORATION
18830883 VEHICLE FRONT STRUCTURE Non-Final OA Kia Corporation
18496118 VEHICLE REINFORCING MEMBER Final Rejection Kia Corporation
19171156 COMPONENT FOR VEHICLE INTERIOR Non-Final OA Yanfeng International Automotive Technology Co. Ltd.
18808525 AIR SKIRT APPARATUS FOR VEHICLE Final Rejection HYUNDAI MOBIS CO., LTD.
18903150 DRIVE SYSTEM PACKAGING FOR SLIDING WINDOW ASSEMBLY Non-Final OA Aisin Corporation
18284810 VEHICLE PANEL STRUCTURE Non-Final OA NIPPON STEEL CORPORATION
18741531 DEPLOYABLE ON DEMAND OTTOMAN FOR FOOTREST, CALF SUPPORT, AND STORAGE Final Rejection GM GLOBAL TECHNOLOGY OPERATIONS LLC
18473924 VENT SYSTEM FOR VEHICLE INTERIOR Non-Final OA GM Global Technology Operations LLC

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Frequently Asked Questions

What is examiner Caroline N Butcher's allowance rate?

81.2% of resolved applications examined by Caroline N Butcher were allowed (819 resolved cases), compared with 74.4% across Art Unit 3612 over the last five years.

Does an interview help with examiner Caroline N Butcher?

This examiner's interview lift is +13.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Caroline N Butcher take to allow a patent?

Applications allowed by Caroline N Butcher took 945 days on average from filing to allowance.

Which art unit does examiner Caroline N Butcher work in?

Caroline N Butcher examines applications in Art Unit 3612 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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