Prosecution Insights
Last updated: October 26, 2026

Kam Wan Ma, USPTO Patent Examiner

Listed by the USPTO as MA, KAM WAN

Tech Center 2600 • Art Units: 2612 2681 2686 2688

This examiner grants 63% of resolved cases

Analysis

MA, KAM WAN is a USPTO patent examiner in tech center 2600 and art unit 2612. The profile covers 392 resolved cases, with a 63.0% allowance rate and a median of 1011 days to allowance. Interviews are associated with a 21.7% lift in this record, making interview practice a potentially useful part of prosecution planning.

The listed company mix includes Toyota Motor Corporation, Samsung Electronics Co., Ltd., and Cardinal Health Inc. The leading firms are ANDRUS INTELLECTUAL PROPERTY LAW, LLP, Foley & Lardner LLP, and HAUPTMAN HAM, LLP. Applicants in this docket can use the profile to set expectations for a substantial examination history, a majority allowance outcome, and a long median path to allowance.

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

Performance Statistics

63.0%
Allow Rate
+1.0% vs TC avg
420
Total Applications
+21.7%
Interview Lift
1011
Avg Prosecution Days
Based on 392 resolved cases, 2023–2026

Rejection Statute Breakdown

3.2%
§101 Eligibility
18.5%
§102 Novelty
53.2%
§103 Obviousness
21.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18993430 ELECTRONIC DEVICE PARKING METHOD AND DEVICE USING ULTRA-WIDEBAND COMMUNICATION Final Rejection SAMSUNG ELECTRONICS CO., LTD.
19079464 PARKING ASSISTANCE METHOD Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19044419 VEHICLE, SERVER, AND VEHICLE CONTROL SYSTEM Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19013510 DISPLAY DEVICE AND DISPLAY METHOD FOR VEHICLE BEHAVIOR Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19002101 AUTOMATED VALET PARKING MANAGEMENT SYSTEM Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18773223 BUILDING MANAGEMENT SYSTEM WITH INTEGRATED ENTITY MANAGEMENT Final Rejection Tyco Fire & Security GmbH

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Frequently Asked Questions

What is examiner Kam Wan Ma's allowance rate?

63.0% of resolved applications examined by Kam Wan Ma were allowed (392 resolved cases), compared with 70.3% across Art Unit 2612 over the last five years.

Does an interview help with examiner Kam Wan Ma?

This examiner's interview lift is +21.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kam Wan Ma take to allow a patent?

Applications allowed by Kam Wan Ma took 1,011 days on average from filing to allowance.

Which art unit does examiner Kam Wan Ma work in?

Kam Wan Ma examines applications in Art Unit 2612 in Tech Center 2600 (Communications).

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