Prosecution Insights
Last updated: October 26, 2026

Paul Chang Lee, USPTO Patent Examiner

Listed by the USPTO as LEE, PAUL CHANG

Tech Center 2800 • Art Units: 2841 2871 2872 2883

This examiner grants 75% of resolved cases

Analysis

LEE, PAUL CHANG examines in Tech Center 2800 and Art Unit 2841. The dataset contains 852 resolved cases and records a 75.1% allowance rate. The median time to allowance is 929 days, so applicants should incorporate a material prosecution interval when planning responses, continuations, and commercial launch timing.

Interviews show a 13.9% lift. LG Electronics, Apple, and Canon are the leading listed companies, reflecting a broad electronics and imaging applicant mix. Ascenda Law Group, BIRCH STEWART KOLASCH & BIRCH, and CANTOR COLBURN are the leading listed firms. These names provide practical reference points for relevant prosecution experience.

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

Performance Statistics

75.1%
Allow Rate
+7.1% vs TC avg
868
Total Applications
+13.9%
Interview Lift
929
Avg Prosecution Days
Based on 852 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
31.6%
§102 Novelty
56.3%
§103 Obviousness
9.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18663166 DISPLAY DEVICE Non-Final OA LG ELECTRONICS INC.
18689397 HEAD MOUNTABLE DEVICE COMPRISING ADJUSTABLE AND MODULAR LENSES Non-Final OA Apple Inc.
18823825 OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
18668789 HEAD-MOUNTED DISPLAY DEVICES, GLASSES-TYPE DISPLAY DEVICES, AND DISPLAY DEVICES HAVING THESE FORMS Non-Final OA SAMSUNG DISPLAY CO., LTD.

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Paul Chang Lee's allowance rate?

75.1% of resolved applications examined by Paul Chang Lee were allowed (852 resolved cases), compared with 85.1% across Art Unit 2841 over the last five years.

Does an interview help with examiner Paul Chang Lee?

This examiner's interview lift is +13.9 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 Chang Lee take to allow a patent?

Applications allowed by Paul Chang Lee took 929 days on average from filing to allowance.

Which art unit does examiner Paul Chang Lee work in?

Paul Chang Lee examines applications in Art Unit 2841 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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