Prosecution Insights
Last updated: October 02, 2026

Examiner: CHEN, ZHITONG

Tech Center 4100 • Art Units: 2412 2647 2649 2815 2837 3796 4100

This examiner grants 76% of resolved cases

Analysis

Zhitong Chen, an examiner in Tech Center 4100 and Art Unit 2412, has 615 resolved cases. The allowance rate is 76.3%, which is quite high. The median days to allowance is 983, showing a relatively efficient process for successful applications. This 983-day timeline is a standard expectation in Art Unit 2412. The 76.3% rate suggests a favorable environment for patent applicants.

The interview lift is 20.3%. This suggests that interviews provide a helpful boost to the 76.3% allowance rate. In Tech Center 4100, the 983-day median pendency is a reliable metric for planning. The 615 resolved cases provide a strong foundation for these statistics. The 20.3% lift indicates that direct communication can be used to finalize allowable subject matter.

Applicants should be encouraged by the 76.3% allowance rate and the 983-day median to allowance. The 20.3% interview lift can be used to resolve any remaining technical issues. In Art Unit 2412, this examiner's profile is favorable for practitioners. The 615 cases of experience suggest a predictable and efficient path to grant.

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

Performance Statistics

76.3%
Allow Rate
+16.3% vs TC avg
647
Total Applications
+20.3%
Interview Lift
983
Avg Prosecution Days
Based on 615 resolved cases, 2023–2026

Rejection Statute Breakdown

2.5%
§101 Eligibility
3.1%
§102 Novelty
84.9%
§103 Obviousness
5.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18149001 SYSTEM AND METHOD FOR DETERMINING UWB BEACON POLE LOCATIONS FOR EXTENDED SERVICE AREAS OF A ROBOT Final Rejection Samsung Electronics Co., Ltd.
18243523 HANDHELD ELECTRONIC DEVICE Final Rejection Apple Inc.
18213669 UTILIZING TRANSFORMER SECONDARY COIL FOR HARMONIC REJECTION FILTERING Non-Final OA Apple Inc.
18960180 Method and device for self-calibrating a radiofrequency transmitter Non-Final OA NXP B.V.
18937730 COMMUNICATION METHOD AND APPARATUS Non-Final OA Huawei Technologies Co., Ltd.
18884202 INFORMATION PROCESSING APPARATUS, CONTROL METHOD THEREOF, AND STORAGE MEDIUM Non-Final OA CANON KABUSHIKI KAISHA
18854343 PER TRANSMISSION AND RECEPTION POINT POWER CONTROL FOR UPLINK SINGLE FREQUENCY NETWORK OPERATION Non-Final OA QUALCOMM Incorporated
18849517 RECEIVING DEVICE, RECEIVING METHOD, AND PROGRAM Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18853821 UE FEEDBACK FOR CROSS-LINK INTERFERENCE MITIGATION Non-Final OA Nokia Technologies Oy
18988275 ELECTRONIC DEVICE Non-Final OA VIVO MOBILE COMMUNICATION CO., LTD.
18849223 CONTROL DEVICE, CODEBOOK GENERATION DEVICE, CONTROL METHOD, CODEBOOK GENERATION METHOD, AND PROGRAM Non-Final OA TOHOKU UNIVERSITY
18722429 Method and Apparatus for Adjusting Operation Mode, Storage Medium, and Electronic Apparatus Non-Final OA ZTE Corporation
18933989 LINK ADAPTATION WITH DYNAMIC BACKOFF OPTIMIZATION Non-Final OA T-Mobile USA, Inc.
18603949 RADIO FREQUENCY SWITCH AND METHOD FOR OPERATING THEREOF Non-Final OA SAMSUNG ELECTRO-MECHANICS CO., LTD.
18521973 MULTI-CHIP MULTI-CHANNEL BEAMFORMER MODULE WITH INTERPOSER PASSIVES Non-Final OA SKYWORKS SOLUTIONS, INC.
18776904 ONSTAR JAMMING DETECTION USING INTERNAL VEHICLE CELLULAR RECEIVED STRENGTH SIGNAL INDICATOR BASIS Non-Final OA GM Global Technology Operations LLC
18637369 DISTRIBUTED RADIO FREQUENCY SIGNAL PROCESSING SYSTEMS AND METHODS Non-Final OA Distributed Spectrum Inc.

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