Prosecution Insights
Last updated: October 27, 2026

Hau Hai Hoang, USPTO Patent Examiner

Listed by the USPTO as HOANG, HAU HAI

Tech Center 2400 • Art Units: 2154 2161 2167 2199 2449

This examiner grants 78% of resolved cases

Analysis

HOANG, HAU HAI is a USPTO patent examiner in Tech Center 2400 and art unit 2154. The profile includes 513 resolved cases, a 78.4% allowance rate, a 13.4% interview lift, and a median of 967 days to allowance. The allowance result and interview measure provide separate signals: the record shows substantial allowance activity, while interviews correspond with a more limited change in outcome.

Named companies include AtomBeam Technologies Inc., Walmart Apollo LLC, and Dropbox Inc. The associated firms are Keller Preece PLLC, BIRCH STEWART KOLASCH & BIRCH, LLP, and CALDWELL LLC. Counsel may find the profile useful when assessing whether interview preparation should accompany claim amendments in this art unit.

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

Performance Statistics

78.4%
Allow Rate
+20.4% vs TC avg
541
Total Applications
+13.4%
Interview Lift
967
Avg Prosecution Days
Based on 513 resolved cases, 2023–2026

Rejection Statute Breakdown

18.4%
§101 Eligibility
16.6%
§102 Novelty
43.1%
§103 Obviousness
15.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19058190 INFORMATION PROCESSING METHOD, INFORMATION PROCESSING APPARATUS, AND PROGRAM Final Rejection FUJIFILM Corporation
18961967 SYSTEMS AND METHODS FOR IMPROVED OPERATIONS WITH GENERATIVE ARTIFICIAL INTELLIGENCE Final Rejection Wells Fargo Bank, N.A.
18590285 Control System for Learning to Rank Fairness Non-Final OA Oracle International Corporation
19332563 Adaptive Cache Synchronization System for Federated Large Codeword Models Non-Final OA AtomBeam Technologies Inc.
19204517 Federated Byte Latent Transformer for Privacy-Preserving Deep Learning Final Rejection AtomBeam Technologies Inc.
19116719 SNAPSHOT METHOD, ELECTRONIC DEVICE, COMPUTER PROGRAM PRODUCT, AND READABLE STORAGE MEDIUM Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18655483 ONBOARD DOCUMENTATION SYSTEM AND METHODS Non-Final OA Oshkosh Corporation
19037607 AUTOMATIC DOCUMENT CONTENT SEARCH AND REPLACE FOR DOCUMENTS WITH MATCHING METADATA METHODS Non-Final OA KYOCERA DOCUMENT SOLUTIONS, INC.
19040064 AUTOMATIC REVISIONS TO DOCUMENT CLAUSES BASED ON CLAUSE TYPE Non-Final OA Docusign, Inc.
19379950 DOCUMENT SEARCH SYSTEM, DOCUMENT SEARCH METHOD, PROGRAM, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM Non-Final OA SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
19012830 INFORMATIONAL GROUNDING WITH RESPECT TO A GENERATIVE MODEL Final Rejection Microsoft Technology Licensing, LLC
19211438 KNOWLEDGE INSIGHT CAPTURING SYSTEM Final Rejection BASF SE
19345827 SELF-HEALING SERVER FILE SYSTEM WITH SPACE CLEANUP Non-Final OA Truist Bank
19096560 STORAGE TIER VERIFICATION CHECKS Non-Final OA NetApp, Inc.
19083686 ATTRIBUTE INFORMATION ACQUISITION METHOD AND APPARATUS FOR DIRECTORY OF DISTRIBUTED FILE SYSTEM,AND DEVICE Final Rejection Baidu Online Network Technology (Beijing) Co., Ltd.
19205533 WITHIN-CONTEXT SEMANTIC RELEVANCE INFERENCE OF MACHINE LEARNING MODEL GENERATED OUTPUT Final Rejection Dropbox, Inc.
19189769 MULTI-DIMENSIONAL CONTENT ORGANIZATION AND ARRANGEMENT CONTROL IN A USER INTERFACE OF A COMPUTING DEVICE Final Rejection Dropbox, Inc.
19088241 SYSTEMS AND METHODS FOR RECOMMENDING INFORMATION ITEMS FOR FULFILLMENT-BASED NATURAL LANGUAGE QUERIES Non-Final OA Walmart Apollo, LLC
18751213 SYSTEMS AND METHODS FOR ALTERING A GRAPHICAL USER INTERFACE BASED ON EXPLORATION OF SEARCH QUERY RANKING Final Rejection Walmart Apollo, LLC

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Frequently Asked Questions

What is examiner Hau Hai Hoang's allowance rate?

78.4% of resolved applications examined by Hau Hai Hoang were allowed (513 resolved cases), compared with 67.7% across Art Unit 2154 over the last five years.

Does an interview help with examiner Hau Hai Hoang?

This examiner's interview lift is +13.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hau Hai Hoang take to allow a patent?

Applications allowed by Hau Hai Hoang took 967 days on average from filing to allowance.

Which art unit does examiner Hau Hai Hoang work in?

Hau Hai Hoang examines applications in Art Unit 2154 in Tech Center 2400 (Networking & Security).

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