Prosecution Insights
Last updated: October 26, 2026

Steven Huang, USPTO Patent Examiner

Listed by the USPTO as HUANG, STEVEN

Tech Center 3700 • Art Units: 3723 3724

This examiner grants 47% of resolved cases

Analysis

HUANG, STEVEN is assigned to Tech Center 3700 and Art Unit 3723. The profile covers 127 resolved cases, an allowance rate of 47.2%, and a median of 1160 days to allowance. The interview lift is 36.8%, suggesting that examiner discussion can be useful when paired with a careful response to the substantive issues driving prosecution.

LG Electronics Inc., MILWAUKEE ELECTRIC TOOL Corporation, and Beijing Roborock Technology Co., Ltd. are the listed companies. BIRCH STEWART KOLASCH & BIRCH, LLP, Alleman Hall LLP, and Arcane Law PLLC are the listed firms. Counsel should prepare for a lower allowance outcome than a routine case and use interviews to test focused amendments.

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

Performance Statistics

47.2%
Allow Rate
-22.8% vs TC avg
183
Total Applications
+36.8%
Interview Lift
1160
Avg Prosecution Days
Based on 127 resolved cases, 2023–2026

Rejection Statute Breakdown

2.5%
§101 Eligibility
19.5%
§102 Novelty
56.5%
§103 Obviousness
18.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18014258 ROBOT CLEANER AND ROBOT CLEANING SYSTEM INCLUDING THE SAME Final Rejection LG ELECTRONICS INC.
18014256 ROBOT CLEANER AND METHOD OF CONTROLLING THE SAME Non-Final OA LG ELECTRONICS INC.
18947586 CLEANER Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18918766 VACUUM SEPARATION DEVICE Non-Final OA MILWAUKEE ELECTRIC TOOL CORPORATION
18910208 WALK-BEHIND BLOWER Non-Final OA Milwaukee Electric Tool Corporation
18203716 COPING SYSTEM Final Rejection MILWAUKEE ELECTRIC TOOL CORPORATION
18266545 FLOOR CLEANER DOCK Non-Final OA Dyson Technology Limited
18521366 CLEANING DEVICE Final Rejection Beijing Roborock Technology Co., Ltd.
18262976 AUTOMATIC CLEANING DEVICE Non-Final OA Beijing Roborock Technology Co., Ltd.
18808430 POLISHING MATERIAL SUPPLY SYSTEM AND RELATED METHODS Non-Final OA Taiwan Semiconductor Manufacturing Company Limited
18923685 POLISHING APPARATUS Non-Final OA EBARA CORPORATION
17605463 A Hand-Held Electrically Powered Work Tool Creating an Overpressure in the Interior Space of the Support Arm Final Rejection HUSQVARNA AB
18866780 SUBSTRATE HOLDING SYSTEM AND LITHOGRAPHIC APPARATUS Non-Final OA ASML NETHERLANDS B.V.

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Frequently Asked Questions

What is examiner Steven Huang's allowance rate?

47.2% of resolved applications examined by Steven Huang were allowed (127 resolved cases), compared with 56.5% across Art Unit 3723 over the last five years.

Does an interview help with examiner Steven Huang?

This examiner's interview lift is +36.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Steven Huang take to allow a patent?

Applications allowed by Steven Huang took 1,160 days on average from filing to allowance.

Which art unit does examiner Steven Huang work in?

Steven Huang examines applications in Art Unit 3723 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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