Prosecution Insights
Last updated: October 02, 2026

Examiner: CHUNG, ANDREW

Tech Center 2800 • Art Units: 2145 2173 2898

This examiner grants 56% of resolved cases

Analysis

Andrew Chung operates in Art Unit 2145 of Tech Center 2800 and has 332 resolved cases. The allowance rate is 56.0 percent. This percentage reflects the frequency of grants within the examiner's portfolio. The median days to allowance is 1382, which measures the time from the initial filing to the final issuance.

The interview lift is 31.4 percent. This figure indicates a significant increase in the probability of success for cases that include an interview. Practitioners can use this 31.4 percent lift to evaluate the impact of oral advocacy. The 332 cases provide the statistical grounding for these observations in Art Unit 2145.

The 1382 median days to allowance acts as a guide for prosecution timelines in Tech Center 2800. With an allowance rate of 56.0 percent, the data shows the frequency of successful outcomes. These metrics offer a clear perspective on the examiner's historical performance. The record of resolved cases helps in understanding the procedural environment.

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

Performance Statistics

56.0%
Allow Rate
-12.0% vs TC avg
357
Total Applications
+31.4%
Interview Lift
1382
Avg Prosecution Days
Based on 332 resolved cases, 2023–2026

Rejection Statute Breakdown

5.6%
§101 Eligibility
12.4%
§102 Novelty
65.0%
§103 Obviousness
8.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18387702 INTEGRATED CIRCUIT DEVICE AND METHOD OF MANUFACTURING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18082851 EPITAXIAL SOURCE OR DRAIN REGION WITH A WRAPPED CONDUCTIVE CONTACT Non-Final OA Intel Corporation
18494808 Chip-On-Wafer Assembly Containing A Decoupling Capacitor Non-Final OA KYOCERA AVX Components Corporation
18067968 STACKED TRANSISTORS WITH STEPPED CONTACTS Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18471316 SEMICONDUCTOR CHIP Final Rejection Taiwan Semiconductor Manufacturing Company, Ltd.
18344860 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18162074 SUBSTRATE PROCESSING FOR AlN AND GaN POLARITY CONTROL Non-Final OA Applied Materials, Inc.
18203654 SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME Non-Final OA UNITED MICROELECTRONICS CORP.
18345790 Transfer of Epitaxial Compound Semiconductor Layers From a Van Der Waals Interface Using Direct Wafer Bonding Non-Final OA FUTURE SEMICONDUCTOR BUSINESS, INC.

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