Prosecution Insights
Last updated: October 02, 2026

Examiner: CHEN, GEORGE YUNG CHIEH

Tech Center 4100 • Art Units: 1741 3628 3667 3753 4187

This examiner grants 49% of resolved cases

Analysis

George Yung Chieh Chen, an examiner in Tech Center 4100 and Art Unit 1741, has 457 resolved cases. The allowance rate is 49.2%, which is about average for this unit. The median days to allowance is 1525, indicating a long path to success. This 1525-day timeline requires significant persistence from applicants. The 49.2% rate suggests that about half of the applications reach allowance in Art Unit 1741.

The interview lift is 35.6%. This suggests that interviews are a productive way to increase the 49.2% allowance rate. In Tech Center 4100, the 1525-day median pendency is a significant factor for practitioners to manage. The 457 resolved cases provide a solid data set for these conclusions. The 35.6% lift indicates that direct communication is a valuable tactic for overcoming rejections.

Applicants should consider the 35.6% interview lift as a way to overcome the 49.2% baseline. The 1525-day median to allowance requires a long-term commitment. Overall, the 457 cases show that direct communication is beneficial for navigating Art Unit 1741. Practitioners should use these figures to set realistic expectations for the 1525-day duration.

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

Performance Statistics

49.2%
Allow Rate
-10.8% vs TC avg
483
Total Applications
+35.6%
Interview Lift
1525
Avg Prosecution Days
Based on 457 resolved cases, 2023–2026

Rejection Statute Breakdown

30.3%
§101 Eligibility
9.5%
§102 Novelty
42.2%
§103 Obviousness
13.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19290643 INFORMATION PROCESSING DEVICE Non-Final OA Mitsubishi Electric Corporation
18880289 PROGRAMMABLE CONTROLLER Non-Final OA Mitsubishi Electric Corporation
18292925 INFORMATION PROCESSING APPARATUS, NON-TRANSITORY COMPUTER-READABLE MEDIUM, AND INFORMATION PROCESSING METHOD Non-Final OA Mitsubishi Electric Corporation
18865174 NON-CONTACT POWER FEEDING SYSTEM, VEHICLE, AND NON-CONTACT POWER FEEDING POWER RECEIVING DEVICE Non-Final OA DENSO CORPORATION
18938474 CONTROL PARAMETER CALCULATION APPARATUS, CONTROL PARAMETER CALCULATION METHOD, AND CONTROL PARAMETER CALCULATION PROGRAM Non-Final OA HORIBA STEC, Co., Ltd.
18536890 Server System Liquid Cooling Leak Detection Information Signal Generation System Non-Final OA Dell Products L.P.

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