Prosecution Insights
Last updated: October 26, 2026

Paul T Chin, USPTO Patent Examiner

Listed by the USPTO as CHIN, PAUL T

Tech Center 4100 • Art Units: 3619 3651 3652 3654 3679 3725 4100

This examiner grants 72% of resolved cases

Analysis

CHIN, PAUL T is assigned to Tech Center 4100 and Art Unit 3619. The record contains 1192 resolved cases, with a 71.6% allowance rate and a median of 874 days to allowance. The interview lift is 15.7%, which marks interviews as a positive outcome signal in this profile.

Toyota Motor Corporation, Alcon Inc., and Caterpillar Inc. are the listed leading companies. Atlanta Baker Donelson, Dinsmore & Shohl LLP, and ICE MILLER LLP are the listed leading firms. Practitioners may find interview preparation particularly relevant when developing prosecution strategy for this examiner.

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

Performance Statistics

71.6%
Allow Rate
+11.6% vs TC avg
1,208
Total Applications
+15.7%
Interview Lift
874
Avg Prosecution Days
Based on 1192 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
27.8%
§102 Novelty
42.3%
§103 Obviousness
25.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18231573 FASTENER HANDLING TOOLS AND METHODS OF HANDLING FASTENERS Non-Final OA Toyota Motor Engineering & Manufacturing North America, Inc.
19093710 COUNTERWEIGHT ASSEMBLY AND SYSTEM FOR MOUNTING THE COUNTERWEIGHT ASSEMBLY Non-Final OA Caterpillar Inc.

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 Paul T Chin's allowance rate?

71.6% of resolved applications examined by Paul T Chin were allowed (1,192 resolved cases), compared with 68.4% across Art Unit 3619 over the last five years.

Does an interview help with examiner Paul T Chin?

This examiner's interview lift is +15.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Paul T Chin take to allow a patent?

Applications allowed by Paul T Chin took 874 days on average from filing to allowance.

Which art unit does examiner Paul T Chin work in?

Paul T Chin examines applications in Art Unit 3619 in Tech Center 4100.

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