Prosecution Insights
Last updated: October 27, 2026

Etienne Pierre Leroux, USPTO Patent Examiner

Listed by the USPTO as LEROUX, ETIENNE PIERRE

Tech Center 4100 • Art Units: 2161 2449 4100

This examiner grants 88% of resolved cases

Analysis

LEROUX, ETIENNE PIERRE is assigned to Tech Center 4100 and Art Unit 2161. The profile records 1116 resolved cases, an 88.5% allowance rate, and a 5.3% interview lift. The median time to allowance is 928 days. The large case base supports interpreting the allowance figure as a meaningful historical pattern, while the interview measure indicates only a limited reported association with allowance outcomes.

The listed companies are NEC Corporation, Sonos Inc., and Capital One Services LLC. The listed firms are Amarok IP Inc., Cooper Legal Group LLC, and FENWICK & WEST LLP. Counsel may emphasize well-supported claims and efficient written responses, reserving interviews for issues that benefit from direct clarification. The allowance rate supports favorable planning assumptions within the limits of the data. The median timing figure remains relevant to portfolio sequencing and client expectations.

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

Performance Statistics

88.5%
Allow Rate
+28.5% vs TC avg
1,138
Total Applications
+5.3%
Interview Lift
928
Avg Prosecution Days
Based on 1116 resolved cases, 2023–2026

Rejection Statute Breakdown

8.1%
§101 Eligibility
18.7%
§102 Novelty
52.7%
§103 Obviousness
13.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19278742 PREDICTING RELEVANCE OF RESOURCES TO SEARCH QUERIES Final Rejection Capital One Services, LLC
19022002 TECHNIQUES FOR ANONYMIZED SEARCHING OF MEDICAL PROVIDERS Non-Final OA Apple Inc.
19260389 SYSTEM FOR AUTOMATIC DATA TRANSFER ACCELERATION Final Rejection The Toronto-Dominion Bank
19290522 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM FOR DECISION MAKING SUPPORT Non-Final OA NEC Corporation
19290478 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM FOR DECISION MAKING SUPPORT Non-Final OA NEC Corporation
19290443 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM FOR DECISION MAKING SUPPORT Non-Final OA NEC Corporation
18942226 DATA MANAGEMENT SYSTEM FOR TRANSFERRING FILES BETWEEN DATABASES Non-Final OA Druva Inc.
19209096 BLOCKCHAIN-BASED GENERATIVE MEDIA SYSTEM FOR REAL-WORLD ASSET TOKENIZATION Non-Final OA Sonos, Inc.
19022968 STORING GENERATED DIGITAL OBJECTS ON A DISTRIBUTED LEDGER Non-Final OA Sonos, Inc.
19286044 UTILIZING MACHINE-LEARNING MODELS TO GENERATE IDENTIFIER EMBEDDINGS AND DETERMINE DIGITAL CONNECTIONS BETWEEN DIGITAL CONTENT ITEMS Non-Final OA Dropbox, Inc.

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Frequently Asked Questions

What is examiner Etienne Pierre Leroux's allowance rate?

88.5% of resolved applications examined by Etienne Pierre Leroux were allowed (1,116 resolved cases), compared with 72.5% across Art Unit 2161 over the last five years.

Does an interview help with examiner Etienne Pierre Leroux?

This examiner's interview lift is +5.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Etienne Pierre Leroux take to allow a patent?

Applications allowed by Etienne Pierre Leroux took 928 days on average from filing to allowance.

Which art unit does examiner Etienne Pierre Leroux work in?

Etienne Pierre Leroux examines applications in Art Unit 2161 in Tech Center 4100.

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