Prosecution Insights
Last updated: October 27, 2026

Joel F Mitchell, USPTO Patent Examiner

Listed by the USPTO as MITCHELL, JOEL F

Tech Center 3600 • Art Units: 3671

This examiner grants 61% of resolved cases

Analysis

MITCHELL, JOEL F is assigned to tech center 3600 and art unit 3671. The record contains 619 resolved cases, with an allowance rate of 61.1%. Median time to allowance is 1187 days. Interview lift is 17.0%, indicating an interview-associated improvement over the profile's overall allowance result.

The represented companies are Deere & Company, Brandt Industries Canada Ltd., and MILWAUKEE ELECTRIC TOOL Corporation. The represented firms are FBT Gibbons LLP, Taft Stettinius & Hollister LLP, and DORITY & MANNING, P.A. and MILWAUKEE ELECTRIC TOOL. Practitioners can use the substantial case history to assess claim strategy and set timing expectations.

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

Performance Statistics

61.1%
Allow Rate
+9.1% vs TC avg
661
Total Applications
+17.0%
Interview Lift
1187
Avg Prosecution Days
Based on 619 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
25.3%
§102 Novelty
42.2%
§103 Obviousness
29.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18645692 OUTDOOR TOOL AND BLADE Final Rejection Milwaukee Electric Tool Corporation
19031131 AGRICULTURAL SYSTEMS Non-Final OA Deere & Company
18892872 APPARATUS, SYSTEM, AND METHOD FOR WORK TOOL CUSHIONING Non-Final OA Deere & Company
18663628 WING FRAME SET WITH ANGLED PIVOTING FOR NARROW TRANSPORTATION Non-Final OA Deere & Company
17387132 FRAME ADJUSTMENT CONTROL SYSTEM AND METHOD FOR POSITION Final Rejection Deere & Company
18641903 LAWN EDGER AND POWER TOOL Non-Final OA Nanjing Chervon Industry Co., Ltd.
18807314 ROW CLEANER ARRANGEMENT FOR ROW UNITS OF AN AGRICULTURAL IMPLEMENT Non-Final OA CNH Industrial America LLC

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Frequently Asked Questions

What is examiner Joel F Mitchell's allowance rate?

61.1% of resolved applications examined by Joel F Mitchell were allowed (619 resolved cases), compared with 62.3% across Art Unit 3671 over the last five years.

Does an interview help with examiner Joel F Mitchell?

This examiner's interview lift is +17.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Joel F Mitchell take to allow a patent?

Applications allowed by Joel F Mitchell took 1,187 days on average from filing to allowance.

Which art unit does examiner Joel F Mitchell work in?

Joel F Mitchell examines applications in Art Unit 3671 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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