Prosecution Insights
Last updated: October 02, 2026

Examiner: FEATHERSTONE, MARK D

Tech Center 4100 • Art Units: 2111 2166 2423 2623 4164

This examiner grants 60% of resolved cases

Analysis

Mark D. Featherstone examines applications in Tech Center 4100 and Art Unit 2111, with 315 resolved cases. His allowance rate of 59.7% provides a baseline for success. The median days to allowance of 1521 indicates that the path to a grant involves a timeline for applicants. This 1521-day median is a metric for managing expectations within Art Unit 2111.

The interview lift of 24.3% is a factor, suggesting that direct communication can increase the 59.7% allowance rate. In Tech Center 4100, practitioners should consider the 24.3% lift as a strategic tool. Managing the 315 resolved cases requires navigating the median days to allowance while utilizing interviews. The interview lift shows that the examiner resolves issues through dialogue, which is a factor given the base allowance rate mentioned above within the tech center.

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

Performance Statistics

59.7%
Allow Rate
At TC average
318
Total Applications
+24.3%
Interview Lift
1521
Avg Prosecution Days
Based on 315 resolved cases, 2023–2026

Rejection Statute Breakdown

9.8%
§101 Eligibility
22.1%
§102 Novelty
54.6%
§103 Obviousness
8.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18524950 SYSTEMS AND METHODS FOR AUDIO DATA AUGMENTATION Non-Final OA Robert Bosch GmbH
18440766 Accelerating Quantum Algorithms with Precomputation Non-Final OA Google LLC
18779296 ARTIFICIAL INTELLIGENCE FOR SOLVING DOMAIN-SPECIFIC PROBLEMS Non-Final OA Artificial Genius, Inc.

Facing This Examiner?

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

Build Your Strategy

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