Prosecution Insights
Last updated: October 26, 2026

Han V Doan, USPTO Patent Examiner

Listed by the USPTO as DOAN, HAN V

Tech Center 2100 • Art Units: 2136 2137 2186

This examiner grants 81% of resolved cases

Analysis

DOAN, HAN V is assigned to Tech Center 2100 and Art Unit 2136. The profile covers 186 resolved cases, an allowance rate of 80.6%, and a median of 1080 days to allowance. The 26.6% interview lift indicates that interviews are associated with a meaningful improvement in allowance outcomes.

Representative companies include Samsung Electronics Co., Ltd., KIOXIA Corporation, and Dell Products L.P. The listed firms are FISH & RICHARDSON P.C. (TC), FOLEY & LARDNER LLP, and OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P. Counsel may want to preserve interview opportunities while planning for the recorded allowance timing.

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

Performance Statistics

80.6%
Allow Rate
+25.6% vs TC avg
201
Total Applications
+26.6%
Interview Lift
1080
Avg Prosecution Days
Based on 186 resolved cases, 2023–2026

Rejection Statute Breakdown

10.8%
§101 Eligibility
11.9%
§102 Novelty
57.4%
§103 Obviousness
17.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18749105 METHOD OF OPERATING STORAGE DEVICE USING DYNAMIC READ SCHEME AND STORAGE DEVICE PERFORMING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
17988748 SYSTEMS AND METHODS FOR USING A STORAGE DEVICE AS PERSISTENT MEMORY Non-Final OA Samsung Electronics Co., Ltd.
18785385 STORAGE SYSTEM AND INFORMATION PROCESSING SYSTEM FOR CONTROLLING NONVOLATILE MEMORY Non-Final OA KIOXIA CORPORATION
18594080 MEMORY SYSTEM AND CONTROL METHOD Non-Final OA Kioxia Corporation
18107610 CACHE MANAGEMENT FOR WEB APPLICATION COMPONENTS Non-Final OA Dell Products L.P.

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Frequently Asked Questions

What is examiner Han V Doan's allowance rate?

80.6% of resolved applications examined by Han V Doan were allowed (186 resolved cases), compared with 72.1% across Art Unit 2136 over the last five years.

Does an interview help with examiner Han V Doan?

This examiner's interview lift is +26.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Han V Doan take to allow a patent?

Applications allowed by Han V Doan took 1,080 days on average from filing to allowance.

Which art unit does examiner Han V Doan work in?

Han V Doan examines applications in Art Unit 2136 in Tech Center 2100 (Computing & Software).

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