Prosecution Insights
Last updated: October 02, 2026

Examiner: TIEU, BINH KIEN

Tech Center 2600 • Art Units: 2614 2653 2656 2691 2694

This examiner grants 87% of resolved cases

Analysis

Binh Kien Tieu is an examiner in Tech Center 2600 and Art Unit 2614. The examiner has an allowance rate of 87.3% across 953 resolved cases. This volume of experience suggests a predictable environment for applicants. The median days to allowance is 826, which is a timeline for reaching a grant.

The interview lift is 9.5%, which enhances the 87.3% baseline. This indicates that while written prosecution is successful, an interview can provide an additional boost to the chances of allowance. For practitioners, the 826-day median pendency is a benefit, showing that the examiner processes cases. With 953 resolved cases, these metrics are statistically robust and provide a foundation for planning a prosecution strategy. The combination of an 87.3% allowance rate and a 9.5% lift makes Art Unit 2614 a productive venue for patent applicants. The data suggests a high probability of success.

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

Performance Statistics

87.3%
Allow Rate
+25.3% vs TC avg
962
Total Applications
+9.5%
Interview Lift
826
Avg Prosecution Days
Based on 953 resolved cases, 2023–2026

Rejection Statute Breakdown

6.8%
§101 Eligibility
26.6%
§102 Novelty
45.0%
§103 Obviousness
2.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18754800 TRANSMISSION TERMINAL, TRANSMISSION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM STORING TRANSMISSION PROGRAM Final Rejection Ricoh Company, Ltd.
18678202 MULTI-SOURCE AUDIO COMMUNICATION SYSTEM Final Rejection Microsoft Technology Licensing, LLC
18907026 Message Recording According To In-Call Option-Based Selection Non-Final OA Zoom Video Communications, Inc.

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