Prosecution Insights
Last updated: October 27, 2026

Leah M Feitl, USPTO Patent Examiner

Listed by the USPTO as FEITL, LEAH M

Tech Center 4100 • Art Units: 2121 2128 2147 2152 2165 4100

This examiner grants 22% of resolved cases

Analysis

FEITL, LEAH M is a USPTO patent examiner in Tech Center 4100 and Art Unit 2121. Across 95 resolved cases, the allowance rate is 22.1%, the interview lift is 6.8%, and median time to allowance is 1563 days.

Microsoft Technology Licensing, LLC, Capital One Services LLC, and Samsung Electronics Co., Ltd. are the leading companies represented. VEDDER PRICE P.C., AMIN, TUROCY & WATSON, LLP, and CROWELL & MORING LLP are the leading firms. The low allowance figure and extended median timing indicate that applicants should develop fallback claim positions early, while the interview figure supports only a limited expectation of benefit from examiner meetings.

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

Performance Statistics

22.1%
Allow Rate
-37.9% vs TC avg
135
Total Applications
+6.8%
Interview Lift
1563
Avg Prosecution Days
Based on 95 resolved cases, 2023–2026

Rejection Statute Breakdown

30.9%
§101 Eligibility
7.3%
§102 Novelty
45.8%
§103 Obviousness
14.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
16998545 SYSTEMS AND METHODS FOR CLASSIFYING DATA USING HIERARCHICAL CLASSIFICATION MODEL Non-Final OA CAPITAL ONE SERVICES, LLC
18187030 METHOD AND DEVICE WITH INFERENCE-BASED DIFFERENTIAL CONSIDERATION Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18183429 Markup Language for Generative Model Prompting Final Rejection Google LLC
18131434 SYSTEMS, METHODS, AND APPARATUSES FOR GENERATING A DIGITAL TWIN OF A RESOURCE USING PARTIAL SENSOR DATA AND ARTIFICIAL INTELLIGENCE Final Rejection BANK OF AMERICA CORPORATION
18545494 LEARNING APPARATUS, LEARNING METHOD, AND PROGRAM Non-Final OA NEC Corporation
17920991 Predicting a Behavior of a Road User Non-Final OA Bayerische Motoren Werke Aktiengesellschaft
18048410 ENTITY SELECTION AND RANKING USING DISTRIBUTION SAMPLING Final Rejection Microsoft Technology Licensing, LLC
17471564 METHOD AND SYSTEM FOR GENERATING LABELED DATASET USING A TRAINING DATA RECOMMENDER TECHNIQUE Final Rejection Tata Consultancy Services Limited
17156158 APPARATUS FOR OPERATING A NEURAL NETWORK, CORRESPONDING METHOD AND COMPUTER PROGRAM PRODUCT Non-Final OA STMicroelectronics S.r.l.
18047119 SELF-SUPERVISED LEARNING ON INFORMATION NOT PROVIDED Non-Final OA Dell Products L.P.
18178485 NETWORK MANAGEMENT FOR MULTI-VENDOR HYBRID QUANTUM-CLASSICAL NETWORKS Final Rejection AT&T Mobility II LLC

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Frequently Asked Questions

What is examiner Leah M Feitl's allowance rate?

22.1% of resolved applications examined by Leah M Feitl were allowed (95 resolved cases), compared with 32.0% across Art Unit 2121 over the last five years.

Does an interview help with examiner Leah M Feitl?

This examiner's interview lift is +6.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Leah M Feitl take to allow a patent?

Applications allowed by Leah M Feitl took 1,563 days on average from filing to allowance.

Which art unit does examiner Leah M Feitl work in?

Leah M Feitl examines applications in Art Unit 2121 in Tech Center 4100.

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