Prosecution Insights
Last updated: October 26, 2026

Daniel Wonsuk Chung, USPTO Patent Examiner

Listed by the USPTO as CHUNG, DANIEL WONSUK

Tech Center 2600 • Art Units: 2659

This examiner grants 61% of resolved cases

Analysis

CHUNG, DANIEL WONSUK has resolved 57 cases in Tech Center 2600 and Art Unit 2659. The allowance rate is 61.4%, and the median time to allowance is 1089 days. The limited resolved record shows allowance in a majority of cases, but it is not large enough to establish a broad prosecution pattern.

The interview lift is 33.7%, providing a meaningful signal for considering interviews in individual cases. The leading companies are Google LLC, International Business Machines Corporation, and Samsung Electronics Co., Ltd. The leading firms are HONIGMAN LLP-GOOGLE, BALLARD SPAHR LLP, and Edell, Shapiro, & Finnan, LLC. Counsel should use the profile as a planning reference while giving substantial weight to application-specific facts.

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

Performance Statistics

61.4%
Allow Rate
-0.6% vs TC avg
91
Total Applications
+33.7%
Interview Lift
1089
Avg Prosecution Days
Based on 57 resolved cases, 2023–2026

Rejection Statute Breakdown

26.6%
§101 Eligibility
16.8%
§102 Novelty
48.8%
§103 Obviousness
6.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17972916 ELECTRONIC DEVICE FOR REGISTERING AN EXTERNAL ELECTRONIC DEVICE AND OPERATING METHOD THEREOF Final Rejection SAMSUNG ELECTRONICS CO., LTD.
17939805 SPEECH RECOGNITION FOR MULTIPLE USERS USING SPEECH PROFILE COMBINATION Final Rejection Apple Inc.
18775561 Reducing Streaming ASR Model Delay With Self Alignment Final Rejection Google LLC
18055395 Multi-Assistant Warm Words Final Rejection Google LLC
18480342 TEXT PROCESSING METHOD AND COMPUTING DEVICE Non-Final OA Huawei Cloud Computing Technologies Co., Ltd.
18280159 LEARNING APPARATUS, ESTIMATION APPARATUS, METHODS AND PROGRAMS FOR THE SAME Non-Final OA NTT, Inc.
18373132 LARGE LANGUAGE MODEL CONTROLLER Non-Final OA Salesforce, Inc.
19019072 INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM IN WHICH INFORMATION PROCESSING PROGRAM IS RECORDED Non-Final OA SHARP KABUSHIKI KAISHA
19001278 LOW LATENCY GENERATIVE ARTIFICIAL INTELLIGENCE AUDIO PIPELINE Non-Final OA META PLATFORMS, INC.
18340044 ENHANCING CHATBOTS THROUGH PROMPT-ENGINEERED LARGE LANGUAGE MODELS Final Rejection International Business Machines Corporation
17936101 SYLLABLE-BASED TEXT CONVERSION FOR PRONUNCIATION HELP Final Rejection INTERNATIONAL BUSINESS MACHINES CORPORATION
18539791 GENERATIVE SPEECH MODEL FOR COMPACT DATA-DRIVEN SPEECH VECTORS FOR VERSATILE SPEECH APPLICATIONS Final Rejection Cisco Technology, Inc.
18610552 LANGUAGE CAPABILITY EVALUATION OF LARGE LANGUAGE MODELS Non-Final OA Zoom Video Communications, Inc.

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Frequently Asked Questions

What is examiner Daniel Wonsuk Chung's allowance rate?

61.4% of resolved applications examined by Daniel Wonsuk Chung were allowed (57 resolved cases), compared with 62.4% across Art Unit 2659 over the last five years.

Does an interview help with examiner Daniel Wonsuk Chung?

This examiner's interview lift is +33.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Daniel Wonsuk Chung take to allow a patent?

Applications allowed by Daniel Wonsuk Chung took 1,089 days on average from filing to allowance.

Which art unit does examiner Daniel Wonsuk Chung work in?

Daniel Wonsuk Chung examines applications in Art Unit 2659 in Tech Center 2600 (Communications).

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