Prosecution Insights
Last updated: October 02, 2026

Examiner: CHOI, EUNSOOK

Tech Center 2600 • Art Units: 2419 2467 2619

This examiner grants 90% of resolved cases

Analysis

Eunsook Choi works in Tech Center 2600 and Art Unit 2419. The examiner has 871 resolved cases and maintains a high allowance rate of 90.1%. This suggests a very favorable environment for applicants, where nine out of ten resolved cases result in a patent grant. The median days to allowance is 917, which indicates a reasonably efficient process for successful applications. These figures are based on a large volume of data, providing high reliability.

The interview lift is 7.5%. This figure shows that while the baseline allowance rate is already very high at 90.1%, conducting an interview still provides a positive increase in the probability of success. This 7.5% lift suggests that the examiner is open to discussion and that interviews can be a useful way to resolve any final issues or clarify technical matters that might otherwise cause minor delays in Art Unit 2419.

With 871 resolved cases, the 90.1% allowance rate and 917 median days to allowance are well-established metrics. These statistics provide a clear picture of the prosecution process in Tech Center 2600. For practitioners, the high allowance rate and the 7.5% interview lift suggest that a well-prepared application and occasional direct engagement are likely to lead to a successful and timely outcome.

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

Performance Statistics

90.1%
Allow Rate
+28.1% vs TC avg
884
Total Applications
+7.5%
Interview Lift
917
Avg Prosecution Days
Based on 871 resolved cases, 2023–2026

Rejection Statute Breakdown

6.2%
§101 Eligibility
23.2%
§102 Novelty
44.5%
§103 Obviousness
11.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18761899 METHOD FOR TRANSMITTING OR RECEIVING CHANNEL STATE INFORMATION FOR PLURALITY OF BASE STATIONS IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR Non-Final OA LG ELECTRONICS INC.
18798705 METHOD AND APPARATUS FOR MEASUREMENT CONFIGURATION IN WIRELESS COMMUNICATION SYSTEM Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18834512 METHOD AND SYSTEM FOR OPERATING MULTI-SIM DEVICE WITH MULTIPLE RRC CONNECTION SUPPORT IN 5G NETWORK Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18393198 BEAM-BASED COUNTING INDICATION FOR MULTICAST BROADCAST SERVICES Non-Final OA Toyota Jidosha Kabushiki Kaisha
18919656 INITIAL ACCESS METHOD AND COMMUNICATION APPARATUS Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18899216 COMMUNICATION METHOD AND COMMUNICATION APPARATUS Non-Final OA Huawei Technologies Co., Ltd.
18823619 DCI CONTENT AND MODIFIED CODEBOOK TYPE 3 HARQ PUCCH CONTENT FOR DEFERRED SPS PUCCH ACK/NACK Non-Final OA QUALCOMM Incorporated
18371058 Routing Between Networks Based on Identifiers Non-Final OA Ofinno, LLC
18040342 RADIO COMMUNICATION NODE Non-Final OA NTT DOCOMO, INC.
18832441 METHODS AND APPARATUSES FOR ASSOCIATING SINGLE-MODAL FLOWS FOR SYNCHRONIZATION AND RESOURCE ALLOCATION Non-Final OA InterDigital Patent Holdings, Inc.
18568102 METHODS, ARCHITECTURES, APPARATUSES AND SYSTEMS DIRECTED TO ADAPTIVE REFERENCE SIGNAL CONFIGURATION Final Rejection InterDigital Patent Holdings, Inc.
18823313 DEVICE AND SYSTEM FOR COMMUNICATION NETWORK MANAGEMENT AND COMMUNICATION FAILURE RESPONSE SERVICE BASED ON PROCESS INFORMATION AT CONSTRUCTION SITE, METHOD OF PROVIDING SAME SERVICE, AND NON-VOLATILE RECORDING MEDIUM IN WHICH COMPUTER PROGRAM FOR PROVIDING SAME SERVICE IS RECORDED Non-Final OA SK Planet Co., Ltd.
18846116 METHOD FOR TRAINING AND DEPLOYING MODEL AND COMMUNICATION DEVICE Non-Final OA BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
18818524 5G OVER COAXIAL COEXISTENCE WITH DOCSIS SYSTEMS AND METHODS Non-Final OA CHARTER COMMUNICATIONS OPERATING, LLC
18711628 COMMUNICATION DEVICE, CONTROL SYSTEM, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM Final Rejection AutoNetworks Technologies, Ltd.

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