Prosecution Insights
Last updated: October 26, 2026

Marc M Duncan, USPTO Patent Examiner

Listed by the USPTO as DUNCAN, MARC M

Tech Center 2100 • Art Units: 2100 2113 2139

This examiner grants 87% of resolved cases

Analysis

DUNCAN, MARC M is a USPTO patent examiner in tech center 2100 and art unit 2100. The profile includes 871 resolved cases, an 87.3% allowance rate, and a median of 859 days to allowance. The interview lift is 7.7%, indicating a positive association, although the interview signal is smaller than the allowance result itself.

The listed companies are Samsung Electronics Co., Ltd., Huawei Technologies Co., Ltd., and Texas Instruments Incorporated. The listed firms are Cozen O'Connor - Boulder, Fogarty LLP, and HARNESS, DICKEY & PIERCE, P.L.C. Practitioners can use the established case record to frame claim drafting and response decisions, with interviews serving as a supplementary tool.

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

Performance Statistics

87.3%
Allow Rate
+32.3% vs TC avg
891
Total Applications
+7.7%
Interview Lift
859
Avg Prosecution Days
Based on 871 resolved cases, 2023–2026

Rejection Statute Breakdown

15.9%
§101 Eligibility
24.6%
§102 Novelty
29.7%
§103 Obviousness
15.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19006153 CONTROL PLANE METHOD AND APPARATUS FOR PROVIDING ERASURE CODE PROTECTION ACROSS MULTIPLE STORAGE DEVICES Final Rejection SAMSUNG ELECTRONICS CO., LTD.
19319018 COORDINATED ERROR PROTECTION Non-Final OA Micron Technology, Inc.
19312885 CONTEXT-SENSITIVE DEBUG REQUESTS FOR MEMORY ACCESS Non-Final OA TEXAS INSTRUMENTS INCORPORATED
18523988 SYSTEMS AND METHODS FOR ACCIDENT DETECTION AND NOTIFICATION Non-Final OA Dell Products, L.P.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Marc M Duncan's allowance rate?

87.3% of resolved applications examined by Marc M Duncan were allowed (871 resolved cases), compared with 38.8% across Art Unit 2100 over the last five years.

Does an interview help with examiner Marc M Duncan?

This examiner's interview lift is +7.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Marc M Duncan take to allow a patent?

Applications allowed by Marc M Duncan took 859 days on average from filing to allowance.

Which art unit does examiner Marc M Duncan work in?

Marc M Duncan examines applications in Art Unit 2100 in Tech Center 2100 (Computing & Software).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month