Prosecution Insights
Last updated: October 26, 2026

Michelle Stein, USPTO Patent Examiner

Listed by the USPTO as STEIN, MICHELLE

Tech Center 1700 • Art Units: 1771 1797

This examiner grants 45% of resolved cases

Analysis

STEIN, MICHELLE is assigned to Tech Center 1700 and Art Unit 1771. Her record includes 677 resolved cases and an allowance rate of 45.3%. Interviews correspond to a 35.5% lift, and the median time to allowance is 1370 days. The combination provides a substantial prosecution history for evaluating how interview practice relates to outcomes in this art unit.

The companies most represented are Topsoe A/S, Shell USA Inc., and Uop LLC. The listed firms are AMSTER, ROTHSTEIN & EBENSTEIN LLP, ARENTFOX SCHIFF LLP - Los Angeles, and BANNER & WITCOFF, LTD. Counsel handling similar matters can account for the reported interview effect and the extended median allowance timeline when setting expectations and choosing response strategies.

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

Performance Statistics

45.3%
Allow Rate
-19.7% vs TC avg
727
Total Applications
+35.5%
Interview Lift
1370
Avg Prosecution Days
Based on 677 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
8.6%
§102 Novelty
62.8%
§103 Obviousness
16.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18898849 HYDROCRACKING OPERATION WITH REDUCED ACCUMULATION OF HEAVY POLYNUCLEAR AROMATICS Non-Final OA Chevron U.S.A. Inc.
18564407 A METHOD OF DETERMINING A CARBURISATION MODEL OF A COIL OF A STEAM CRACKING FURNACE Non-Final OA Linde GmbH
18957677 INTEGRATED PROCESS FOR HYDROTREATING A RENEWABLE FEEDSTOCK WITH IMPROVED CARBON MONOXIDE MANAGEMENT Non-Final OA UOP LLC
18417188 PROCESS FOR PREPARING AN OLEFIN STREAM FOR OLIGOMERIZATION WITH DIMETHYL ETHER REMOVAL Final Rejection UOP LLC
18709124 APPARATUS AND PROCESS FOR HYDROCARBON STEAM CRACKING Non-Final OA TOTALENERGIES ONETECH BELGIUM

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Frequently Asked Questions

What is examiner Michelle Stein's allowance rate?

45.3% of resolved applications examined by Michelle Stein were allowed (677 resolved cases), compared with 53.8% across Art Unit 1771 over the last five years.

Does an interview help with examiner Michelle Stein?

This examiner's interview lift is +35.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Michelle Stein take to allow a patent?

Applications allowed by Michelle Stein took 1,370 days on average from filing to allowance.

Which art unit does examiner Michelle Stein work in?

Michelle Stein examines applications in Art Unit 1771 in Tech Center 1700 (Chemistry & Materials).

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