Prosecution Insights
Last updated: October 26, 2026

Chee-Chong Lee, USPTO Patent Examiner

Listed by the USPTO as LEE, CHEE-CHONG

Tech Center 3700 • Art Units: 1612 1747 3645 3752

This examiner grants 64% of resolved cases

Analysis

LEE, CHEE-CHONG has 795 resolved cases, a 64.3% allowance rate, and a 52.5% interview lift. The median time to allowance is 1242 days. The examiner is associated with Tech Center 3700 and Art Unit 1612. The interview lift is a significant feature of the record, indicating that interviews have been associated with a measurable improvement in the reported outcome. The 1242-day median makes prosecution timing an important consideration.

The leading companies are Fieldbot LLC, Stinger Equipment, Inc., and Highway Equipment Company. The principal firms are One LLP, AMPACC Law Group, PLLC, and BIRCH STEWART KOLASCH & BIRCH, LLP. Practitioners can use this recurring applicant and counsel profile to frame technology-specific arguments and determine when examiner interaction should supplement written prosecution.

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

Performance Statistics

64.3%
Allow Rate
-5.7% vs TC avg
873
Total Applications
+52.5%
Interview Lift
1242
Avg Prosecution Days
Based on 795 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
26.7%
§102 Novelty
37.0%
§103 Obviousness
33.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18200644 WEATHER MANAGEMENT SYSTEM Non-Final OA Toyota Motor Engineering & Manufacturing North America, Inc.
18405246 FIRE EXTINGUISHING EQUIPMENT, BATTERY PACK, ENERGY STORAGE SYSTEM, AND ELECTRIC VEHICLE Non-Final OA Huawei Digital Power Technologies Co., Ltd.
18713996 ENERGY STORAGE SYSTEM Final Rejection LG ENERGY SOLUTION, LTD.
18260427 HAIR/SCALP CARE METHOD AND HAIR/SCALP CARE DEVICE Non-Final OA AISIN CORPORATION
18404106 VEHICLE WASHER FLUID SYSTEMS WITH SECONDARY WASHER FLUID RESERVOIRS Non-Final OA FORD GLOBAL TECHNOLOGIES, LLC
19114119 ACCURATE APPLICATION OF LIQUIDS IN A FIELD FOR CROP PLANTS Non-Final OA BAYER AKTIENGESELLSCHAFT
19120119 SELF-CHECKING-BASED FIRE-FIGHTING AIR INTAKE AND DISCHARGE CONTROL SYSTEM, AND CONTROL METHOD Non-Final OA Sungrow Power Supply Co., Ltd.

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Frequently Asked Questions

What is examiner Chee-Chong Lee's allowance rate?

64.3% of resolved applications examined by Chee-Chong Lee were allowed (795 resolved cases), compared with 40.7% across Art Unit 1612 over the last five years.

Does an interview help with examiner Chee-Chong Lee?

This examiner's interview lift is +52.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Chee-Chong Lee take to allow a patent?

Applications allowed by Chee-Chong Lee took 1,242 days on average from filing to allowance.

Which art unit does examiner Chee-Chong Lee work in?

Chee-Chong Lee examines applications in Art Unit 1612 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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