Prosecution Insights
Last updated: October 26, 2026

Deming Wan, USPTO Patent Examiner

Listed by the USPTO as WAN, DEMING

Tech Center 3700 • Art Units: 3746 3748 3762

This examiner grants 76% of resolved cases

Analysis

WAN, DEMING handles applications in Tech Center 3700 and Art Unit 3746. Her record includes 948 resolved cases, a 76.5% allowance rate, and a median of 913 days to allowance. The data shows that most resolved matters reached allowance, while the median timeline indicates prosecution commonly lasting more than two years.

The 42.2% interview lift indicates a strong positive association between interviews and allowance. The leading companies are LG Electronics Inc., Samsung Electronics Co., Ltd., and Sharkninja Operating LLC. The leading firms are BIRCH STEWART KOLASCH & BIRCH, LLP, Dority & Manning, P.A. and Haier US Appliance, and Nixon Peabody LLP. Applicants may gain value from using interviews to address substantive issues before they generate additional rounds of prosecution.

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

Performance Statistics

76.5%
Allow Rate
+6.5% vs TC avg
983
Total Applications
+42.2%
Interview Lift
913
Avg Prosecution Days
Based on 948 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
19.7%
§102 Novelty
50.5%
§103 Obviousness
25.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18712755 DIFFUSER FOR DIFFUSING A GAS FLOW WITHIN A STACK OF BLANKS AND ASSOCIATED ASSEMBLIES Non-Final OA Safran Landing Systems
18819428 LAUNDRY TREATING APPARATUS Non-Final OA LG ELECTRONICS INC.
18723740 CLOTHING TREATING APPARATUS Non-Final OA LG ELECTRONICS INC.
18685112 HAIR DRYER Non-Final OA LG ELECTRONICS INC.
18916936 SUBSTRATE PROCESSING APPARATUS Non-Final OA Samsung Electronics Co., Ltd.
18758886 CLOTHING TREATMENT DEVICE Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18747951 SUBSTRATE PROCESSING APPARATUS Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18806651 DRYING APPARATUS Non-Final OA KYOCERA Document Solutions Inc.
18638696 DRYING DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18717867 METHOD FOR CONTROLLING A CLOTHES DRYER, CLOTHES DRYER, AND STORAGE MEDIUM Non-Final OA HAIER SMART HOME CO., LTD.
18165193 SUBSTRATE PROCESSING LIQUID, SUBSTRATE PROCESSING METHOD, AND SUBSTRATE PROCESSING APPARATUS Final Rejection SCREEN Holdings Co., Ltd.

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Frequently Asked Questions

What is examiner Deming Wan's allowance rate?

76.5% of resolved applications examined by Deming Wan were allowed (948 resolved cases), compared with 68.0% across Art Unit 3746 over the last five years.

Does an interview help with examiner Deming Wan?

This examiner's interview lift is +42.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Deming Wan take to allow a patent?

Applications allowed by Deming Wan took 913 days on average from filing to allowance.

Which art unit does examiner Deming Wan work in?

Deming Wan examines applications in Art Unit 3746 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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