Prosecution Insights
Last updated: October 02, 2026

Examiner: FAN, CHIEH M

Tech Center 2600 • Art Units: 2611 2631 2632 2647

This examiner grants 48% of resolved cases

Analysis

Chieh M. Fan serves in Tech Center 2600 and Art Unit 2611, where he has overseen 33 resolved cases. His allowance rate of 48.5% indicates a more challenging environment for applicants, with less than half of the cases resulting in a grant. The median days to allowance is 1033, which outlines the typical timeframe for reaching a resolution.

The data shows an interview lift of 13.4%, suggesting that direct communication can improve the 48.5% allowance rate. For practitioners in Art Unit 2611, this 13.4% lift is a meaningful factor to consider when planning prosecution strategy. The 33 resolved cases provide an initial look at the examiner's performance trends.

In Tech Center 2600, the 1033-day median pendency is a key metric for applicants to monitor. While the allowance rate is 48.5%, the positive interview lift offers a potential path to success. Practitioners should be prepared for the 1033-day timeline while utilizing interviews to enhance their chances.

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

Performance Statistics

48.5%
Allow Rate
-13.5% vs TC avg
41
Total Applications
+13.4%
Interview Lift
1033
Avg Prosecution Days
Based on 33 resolved cases, 2023–2026

Rejection Statute Breakdown

3.9%
§101 Eligibility
25.4%
§102 Novelty
43.9%
§103 Obviousness
16.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19014620 RIC FOR SELECTING CELL TO PERFORM COMP FUNCTION AND METHOD OF OPERATING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
19000503 METHOD FOR CONTROL SIGNALING FOR MULTI-BEAM PUSCH REPETITION TRANSMISSION Non-Final OA Apple Inc.
18619411 COMMUNICATION APPARATUS, NETWORK NODE AND METHOD Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
19037582 COMMUNICATION CONTROL METHOD Non-Final OA KYOCERA Corporation
18694786 COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD Final Rejection NTT DOCOMO, INC.

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