Prosecution Insights
Last updated: October 26, 2026

Binh Kien Tieu, USPTO Patent Examiner

Listed by the USPTO as TIEU, BINH KIEN

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

This examiner grants 87% of resolved cases

Analysis

TIEU, BINH KIEN works in USPTO tech center 2600 and art unit 2614. The profile covers 953 resolved cases, with an allowance rate of 87.3% and a median of 826 days to allowance. Interviews are associated with a 9.5% lift. The substantial record and favorable allowance figure provide a strong basis for using this examiner profile in prosecution planning.

Ricoh Company, Ltd., Zoom Video Communications Inc., and Numeracle, Inc. are the listed companies. The associated firms are Kilpatrick Townsend & Stockton LLP - Winston-Salem and Xsensus. Practitioners handling communications, imaging, and software-related matters can use the profile to anticipate a comparatively allowance-oriented record, while still assessing each application on its claims and prior-art posture.

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

6.9%
§101 Eligibility
26.8%
§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.
18907026 Message Recording According To In-Call Option-Based Selection Non-Final OA Zoom Video Communications, Inc.

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Frequently Asked Questions

What is examiner Binh Kien Tieu's allowance rate?

87.3% of resolved applications examined by Binh Kien Tieu were allowed (953 resolved cases), compared with 66.9% across Art Unit 2614 over the last five years.

Does an interview help with examiner Binh Kien Tieu?

This examiner's interview lift is +9.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Binh Kien Tieu take to allow a patent?

Applications allowed by Binh Kien Tieu took 826 days on average from filing to allowance.

Which art unit does examiner Binh Kien Tieu work in?

Binh Kien Tieu examines applications in Art Unit 2614 in Tech Center 2600 (Communications).

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