Prosecution Insights
Last updated: October 26, 2026

Robert B Leung, USPTO Patent Examiner

Listed by the USPTO as LEUNG, ROBERT B

Tech Center 2400 • Art Units: 2494

This examiner grants 84% of resolved cases

Analysis

LEUNG, ROBERT B is associated with Tech Center 2400 and Art Unit 2494. The profile records 633 resolved cases, an 84.5% allowance rate, and a 16.8% interview lift. The median time to allowance is 934 days. The substantial case base supports a meaningful historical interpretation of the allowance figure, and the interview measure indicates that examiner discussions may affect outcomes in a portion of cases.

The listed companies are Medtronic Minimed Inc., Atlassian US Inc., and Idemia Public Security France. The listed firms are NOVICK, KIM & LEE, PLLC, dba NKL Law and OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P. Counsel may combine focused interviews with clear written amendments and evidence. The allowance rate supports favorable planning, but does not replace claim-specific analysis. The median duration should be considered when setting client expectations and coordinating related filings.

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

Performance Statistics

84.5%
Allow Rate
+26.5% vs TC avg
656
Total Applications
+16.8%
Interview Lift
934
Avg Prosecution Days
Based on 633 resolved cases, 2023–2026

Rejection Statute Breakdown

12.8%
§101 Eligibility
13.0%
§102 Novelty
42.7%
§103 Obviousness
20.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18935413 SYSTEMS, METHODS, AND APPARATUS FOR MEMORY DEVICE WITH DATA SECURITY PROTECTION Final Rejection Samsung Electronics Co., Ltd.

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Frequently Asked Questions

What is examiner Robert B Leung's allowance rate?

84.5% of resolved applications examined by Robert B Leung were allowed (633 resolved cases), compared with 75.3% across Art Unit 2494 over the last five years.

Does an interview help with examiner Robert B Leung?

This examiner's interview lift is +16.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Robert B Leung take to allow a patent?

Applications allowed by Robert B Leung took 934 days on average from filing to allowance.

Which art unit does examiner Robert B Leung work in?

Robert B Leung examines applications in Art Unit 2494 in Tech Center 2400 (Networking & Security).

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