Prosecution Insights
Last updated: October 02, 2026

Examiner: CHANG, JUNGWON

Tech Center 2400 • Art Units: 2154 2454 2472

This examiner grants 86% of resolved cases

Analysis

Jungwon Chang is an examiner in Tech Center 2400 and Art Unit 2154. The examiner has 838 resolved cases. This volume of resolutions offers a basis for analyzing the examiner's typical prosecution outcomes. The data provides a view of how applications are handled within this specific technical unit and the examiner's approach to patentability.

The allowance rate is 86.4 percent. This percentage shows the frequency of grants for applications that reach a final resolution with this examiner. The median days to allowance is 1058. This figure indicates the time from filing to the grant of a patent. Practitioners can use this duration to estimate the timeline for their own applications and manage client expectations regarding the prosecution phase.

The interview lift is 14.7 percent. This metric indicates that an interview is associated with an increase in the probability of an allowance. The positive lift suggests that verbal communication is an effective method for resolving rejections with this examiner. Applicants might prioritize scheduling an interview to address the examiner's concerns and potentially accelerate the path to a patent grant.

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

Performance Statistics

86.4%
Allow Rate
+28.4% vs TC avg
860
Total Applications
+14.7%
Interview Lift
1058
Avg Prosecution Days
Based on 838 resolved cases, 2023–2026

Rejection Statute Breakdown

10.9%
§101 Eligibility
11.9%
§102 Novelty
54.3%
§103 Obviousness
9.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18724739 APPARATUS AND METHOD FOR CONTROLLING TERMINAL PROCESSING TIME DURING RANDOM ACCESS PROCEDURE IN WIRELESS COMMUNICATION SYSTEM Non-Final OA LG Electronics Inc.
18849997 COMMUNICATION METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM SUPPORTING VIRTUAL NETWORK GROUP COMMUNICATION Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18474161 METHOD AND APPARATUS FOR RESTRICTED TWT INFORMATION REQUEST Non-Final OA Samsung Electronics Co., Ltd.
18469992 METHOD AND APPARATUS FOR CONFIGURING SSB BEAM SWEEPING PATTERN IN A WIRELESS COMMUNICATION SYSTEM Final Rejection Samsung Electronics Co., Ltd.
17959291 SYSTEMS, METHODS, AND APPARATUS FOR ARTIFICIAL INTELLIGENCE AND MACHINE LEARNING FOR A PHYSICAL LAYER OF COMMUNICATION SYSTEM Final Rejection Samsung Electronics Co., Ltd.
18807361 Hybrid Automatic Repeat Request Acknowledgment Codebook Reception Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18928534 Consensus Based Data Deletion in a Distributed Storage Network Non-Final OA Pure Storage, Inc.
18104558 MULTI-ENGINE PACKET PROCESSING WITH TABLE UPDATES Final Rejection Google LLC
18853287 IMPROVED EMLSR MODE IN NON-AP MLDS NOT TRIGGERED BY THE AP MLD Non-Final OA CANON KABUSHIKI KAISHA
18835623 PERIODIC BEAM SWITCHING REPORT FOR HIGH ALTITUDE PLATFORM STATIONS Non-Final OA QUALCOMM Incorporated
18729784 EXPLICIT AND IMPLICIT PRECODER INDICATION FOR DEMODULATION REFERENCE SIGNAL-BASED CHANNEL STATE INFORMATION REPORTING Non-Final OA QUALCOMM Incorporated
18685559 Method and Device for Monitoring a Time Synchronization Distributed via a Network Switch to Be Used in a Communication Network of an Automated Vehicle Final Rejection Bayerische Motoren Werke Aktiengesellschaft
17908268 METHOD AND APPARATUS FOR PARAMETER SETTING Non-Final OA Telefonaktiebolaget LM Ericsson (publ)
18807562 BEAM MANAGEMENT Non-Final OA Nokia Technologies Oy
18636992 METHOD AND/OR DEVICE FOR REPORTING QUANTIZED VALUES FOR A CHANNEL STATE INFORMATION QUANTITY Non-Final OA Nokia Technologies Oy
18697750 DATA OFFLOADING METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM Final Rejection ZTE CORPORATION
18669887 AUTOMATED INTERACTION WITH AN ELEMENT MANAGEMENT SYSTEM AND DATA VALIDATION ASSOCIATED WITH A CELL SITE Non-Final OA Boost SubscriberCo. L.L.C.
18592985 AUTOMATICALLY SELECTING A NETWORK LINK FOR TRANSFERRING DATA BASED ON LINK PERFORMANCE Non-Final OA Motorola Mobility LLC

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