Prosecution Insights
Last updated: October 27, 2026

Mitchell T Oestreich, USPTO Patent Examiner

Listed by the USPTO as OESTREICH, MITCHELL T

Tech Center 2800 • Art Units: 2872

This examiner grants 75% of resolved cases

Analysis

OESTREICH, MITCHELL T has resolved 423 cases in Tech Center 2800 and Art Unit 2872. The allowance rate is 75.2%, with an interview lift of 18.8%. The median time to allowance is 1025 days. The positive interview measure adds support for considering examiner interviews, while the allowance rate supplies the broader view of resolved outcomes.

The principal companies are Zenni Optical Inc., Samsung Electronics Co., Ltd., and Nippon Electric Glass Co., Ltd. The leading firms are JCIPRNET, Jefferson IP Law, LLP, and OSAKA FRONT PATENT FIRM. The profile gives counsel a basis for planning in Art Unit 2872, including attention to interview timing and the duration reflected by the median allowance figure.

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

Performance Statistics

75.2%
Allow Rate
+7.2% vs TC avg
441
Total Applications
+18.8%
Interview Lift
1025
Avg Prosecution Days
Based on 423 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
29.2%
§102 Novelty
41.7%
§103 Obviousness
26.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18610876 FACE COVER Non-Final OA Samsung Electronics Co., Ltd.
18683534 IMMERSION DIFFRACTION ELEMENT AND METHOD FOR PRODUCING SAME Final Rejection NIPPON ELECTRIC GLASS CO., LTD.
19015499 WEARABLE DISPLAY DEVICE AND ADJUSTMENT METHOD THEREOF Non-Final OA Coretronic Corporation
18872164 HOLOGRAPHIC OPTICAL MODULE, HOLOGRAPHIC DISPLAY DEVICE COMPRISING SUCH A HOLOGRAPHIC OPTICAL MODULE, AND METHOD FOR PRODUCING SUCH A HOLOGRAPHIC OPTICAL MODULE Non-Final OA Carl Zeiss Jena GmbH

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Frequently Asked Questions

What is examiner Mitchell T Oestreich's allowance rate?

75.2% of resolved applications examined by Mitchell T Oestreich were allowed (423 resolved cases), compared with 64.9% across Art Unit 2872 over the last five years.

Does an interview help with examiner Mitchell T Oestreich?

This examiner's interview lift is +18.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mitchell T Oestreich take to allow a patent?

Applications allowed by Mitchell T Oestreich took 1,025 days on average from filing to allowance.

Which art unit does examiner Mitchell T Oestreich work in?

Mitchell T Oestreich examines applications in Art Unit 2872 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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