Prosecution Insights
Last updated: October 02, 2026

Examiner: LEROUX, ETIENNE PIERRE

Tech Center 4100 • Art Units: 2161 2449 4100

This examiner grants 88% of resolved cases

Analysis

Etienne Pierre Leroux examines cases in Tech Center 4100 and Art Unit 2161. He has resolved 1116 cases, maintaining an allowance rate of 88.5 percent. This 88.5 percent rate indicates that he frequently finds patentable subject matter in the applications he reviews. For practitioners, this high rate suggests a very favorable environment for securing patent rights. The 1116 resolved cases offer a robust dataset for evaluating these trends.

The median days to allowance is 928, which is under the three-year mark. This 928-day timeline indicates a relatively efficient prosecution cycle. The interview lift is 5.3 percent, which is a small increase that reflects the already high 88.5 percent baseline allowance rate. Because the majority of cases reach allowance without an interview, the 5.3 percent lift suggests that verbal advocacy is a secondary tool in his docket. Applicants in Art Unit 2161 can anticipate a straightforward prosecution path with a high probability of success. The 928-day median provides a reliable benchmark for the expected time to issuance.

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
1,131
Total Applications
+5.3%
Interview Lift
928
Avg Prosecution Days
Based on 1116 resolved cases, 2023–2026

Rejection Statute Breakdown

8.0%
§101 Eligibility
18.6%
§102 Novelty
52.9%
§103 Obviousness
13.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19022002 TECHNIQUES FOR ANONYMIZED SEARCHING OF MEDICAL PROVIDERS Non-Final OA Apple Inc.
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
19290522 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM FOR DECISION MAKING SUPPORT Non-Final OA NEC Corporation
19278742 PREDICTING RELEVANCE OF RESOURCES TO SEARCH QUERIES Final Rejection Capital One Services, LLC
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.
19268733 TWO-STATE TIME-ENRICHED SYSTEM AND METHOD FOR QUERY CLUSTERING Non-Final OA Yahoo Assets LLC
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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