Prosecution Insights
Last updated: October 26, 2026

Gregory S Emch, USPTO Patent Examiner

Listed by the USPTO as EMCH, GREGORY S

Tech Center 1600 • Art Units: 1600 1644 1645 1646 1649 1674 1678 1699

This examiner grants 48% of resolved cases

Analysis

EMCH, GREGORY S examines in tech center 1600 and art unit 1600. The profile covers 640 resolved cases, with an allowance rate of 48.0%. The median time to allowance is 1314 days. The allowance figure is below half of the recorded cases, and the timing figure signals a prolonged path to allowance for matters represented in the profile.

The interview lift is 43.2%, a strong positive association in this dataset. Akston Biosciences Corporation, The Regents of the University of California, and Daicel Corporation are the top companies. The listed firms are ADE & COMPANY INC., CHOATE, HALL & STEWART LLP, and Hovey Williams LLP. Practitioners may place particular emphasis on interview preparation and clear identification of the claim limitations that distinguish the cited art.

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

Performance Statistics

48.0%
Allow Rate
-12.0% vs TC avg
662
Total Applications
+43.2%
Interview Lift
1314
Avg Prosecution Days
Based on 640 resolved cases, 2023–2026

Rejection Statute Breakdown

6.9%
§101 Eligibility
17.0%
§102 Novelty
32.1%
§103 Obviousness
24.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17762685 NOTCH RECEPTORS WITH MINIMAL LINKER Final Rejection The Regents of the University of California

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Frequently Asked Questions

What is examiner Gregory S Emch's allowance rate?

48.0% of resolved applications examined by Gregory S Emch were allowed (640 resolved cases), compared with 37.3% across Art Unit 1600 over the last five years.

Does an interview help with examiner Gregory S Emch?

This examiner's interview lift is +43.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Gregory S Emch take to allow a patent?

Applications allowed by Gregory S Emch took 1,314 days on average from filing to allowance.

Which art unit does examiner Gregory S Emch work in?

Gregory S Emch examines applications in Art Unit 1600 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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