Prosecution Insights
Last updated: October 26, 2026

Lisa Ma, USPTO Patent Examiner

Listed by the USPTO as MA, LISA

Tech Center 3600 • Art Units: 3628

This examiner grants 47% of resolved cases

Analysis

Lisa Ma has resolved 175 cases in Art Unit 3628, where the allowance rate is 47.4 percent. The median days to allowance of 1142 suggests a prosecution timeline of over three years. Companies like Blue Yonder Group Inc. and NEC Corporation navigate a competitive environment in Tech Center 3600, where less than half of applications reach grant. For Lyft Inc., the 47.4 percent allowance rate and 1142-day median pendency require a persistent and well-planned prosecution strategy.

An interview lift of 44.0 percent highlights the critical importance of direct examiner engagement. For firms like Birch Stewart Kolasch & Birch, LLP and Bradley Arant Boult Cummings LLP, an interview can nearly double the 47.4 percent baseline probability of success. Conley Rose, P.C. can leverage the 44.0 percent lift to overcome rejections more effectively. With 175 resolved cases, the data suggests that verbal advocacy is a primary driver for success with this examiner. The 1142-day process can be significantly improved by utilizing the substantial lift provided by interviews.

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

Performance Statistics

47.4%
Allow Rate
-4.6% vs TC avg
199
Total Applications
+44.0%
Interview Lift
1142
Avg Prosecution Days
Based on 175 resolved cases, 2023–2026

Rejection Statute Breakdown

33.1%
§101 Eligibility
8.6%
§102 Novelty
39.5%
§103 Obviousness
15.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19332374 A NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM STORING COMPUTER-READABLE INSTRUCTIONS FOR CONTROL DEVICE, SYSTEM AND METHOD Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA
19108190 PROCESSING APPARATUS, PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM Non-Final OA NEC Corporation
19081492 ADAPTIVE PRICING AND INVENTORY ENGINE Final Rejection eBay Inc.

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Frequently Asked Questions

What is examiner Lisa Ma's allowance rate?

47.4% of resolved applications examined by Lisa Ma were allowed (175 resolved cases), compared with 29.8% across Art Unit 3628 over the last five years.

Does an interview help with examiner Lisa Ma?

This examiner's interview lift is +44.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Lisa Ma take to allow a patent?

Applications allowed by Lisa Ma took 1,142 days on average from filing to allowance.

Which art unit does examiner Lisa Ma work in?

Lisa Ma examines applications in Art Unit 3628 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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