Prosecution Insights
Last updated: October 26, 2026

Paul D Lee, USPTO Patent Examiner

Listed by the USPTO as LEE, PAUL D

Tech Center 4100 • Art Units: 2857 2858 2862 3629 3783 4100

This examiner grants 83% of resolved cases

Analysis

Paul D Lee is an examiner in Tech Center 4100 and Art Unit 2857. He has managed 654 resolved cases. The data shows an 83.0% allowance rate and a median pendency of 1146 days to allowance. A 14.8% interview lift indicates that conducting an interview is associated with an increase in the probability of allowance compared to the 83.0% baseline. This lift suggests that oral advocacy is an effective strategy for practitioners appearing before this examiner.

The top companies in this examiner's portfolio include Samsung Display Co., Ltd., Emerson Electric Co., and Saudi Arabian Oil Company. Legal representation is often provided by firms such as MCDONNELL BOEHNEN HULBERT & BERGHOFF LLP, 24IP LAW GROUP USA, PLLC, and Ascent Intellectual Property Law. The 1146 median days to allowance provides a benchmark for expected prosecution duration. Practitioners should utilize the 14.8% interview lift to improve the chances of a successful outcome. With 654 resolved cases, the examiner has a consistent record in Art Unit 2857.

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

Performance Statistics

83.0%
Allow Rate
+23.0% vs TC avg
679
Total Applications
+14.8%
Interview Lift
1146
Avg Prosecution Days
Based on 654 resolved cases, 2023–2026

Rejection Statute Breakdown

28.0%
§101 Eligibility
18.4%
§102 Novelty
33.9%
§103 Obviousness
16.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18631212 INSPECTING METHOD OF DISPLAY PANEL AND INSPECTING DEVICE PERFORMING THE SAME Non-Final OA Samsung Display Co., LTD.
18713988 METHOD, DEVICE, MEDIUM AND PRODUCT FOR STATE PREDICTION OF A PHYSICAL SYSTEM Non-Final OA Lemon Inc.
18722263 ELECTRIC OUTAGE CONFIRMATION APPARATUS, POWER SUPPLY DEPLETION CONFIRMATION APPARATUS, ELECTRIC OUTAGE CONFIRMATION METHOD, POWER SUPPLY DEPLETION CONFIRMATION METHOD, AND PROGRAM Non-Final OA NIPPON TELEGRAPH AND TELEPHONE CORPORATION
18695017 SYSTEM, APPARATUS AND METHOD FOR MONITORING FAULTS IN AN ELECTRIC MACHINE Non-Final OA Siemens Aktiengesellschaft
18663469 CURRICULUM LEARNING IN FINER SPECTRUM INFERENCE Non-Final OA International Business Machines Corporation
18394271 PERSONALIZED WEATHER INSIGHT INFORMATION Final Rejection Motorola Mobility LLC
18465081 INFORMATION PROCESSING DEVICE, INJECTION MOLDING MACHINE, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM Final Rejection SUMITOMO HEAVY INDUSTRIES, LTD.

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Who Appears Before This Examiner

Top companies before this examiner

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Frequently Asked Questions

What is examiner Paul D Lee's allowance rate?

83.0% of resolved applications examined by Paul D Lee were allowed (654 resolved cases), compared with 72.0% across Art Unit 2857 over the last five years.

Does an interview help with examiner Paul D Lee?

This examiner's interview lift is +14.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Paul D Lee take to allow a patent?

Applications allowed by Paul D Lee took 1,146 days on average from filing to allowance.

Which art unit does examiner Paul D Lee work in?

Paul D Lee examines applications in Art Unit 2857 in Tech Center 4100.

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