Prosecution Insights
Last updated: October 27, 2026

Mai Thi Ngoc Tran, USPTO Patent Examiner

Listed by the USPTO as TRAN, MAI THI NGOC

Tech Center 2800 • Art Units: 2834 2872 2877 2878

This examiner grants 86% of resolved cases

Analysis

TRAN, MAI THI NGOC is assigned to Tech Center 2800 and Art Unit 2834. The profile includes 145 resolved cases, an 86.2% allowance rate, and a 4.6% interview lift. The median time to allowance is 838 days. The reported outcome is strongly allowance-oriented, while the smaller interview figure indicates that interviews have a less pronounced recorded association with allowance changes in this docket.

The leading companies are Samsung Electronics Co., Ltd., Canon Inc., and NEC Corporation. The listed firms are HARNESS DICKEY (DETROIT), IP & T GROUP LLP, and LUCAS & MERCANTI, LLP. Counsel handling similar matters may prioritize precise written responses and technically well-supported claim amendments, using interviews selectively when written prosecution alone does not resolve the central issue.

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

Performance Statistics

86.2%
Allow Rate
+18.2% vs TC avg
170
Total Applications
+4.6%
Interview Lift
838
Avg Prosecution Days
Based on 145 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
31.6%
§102 Novelty
43.5%
§103 Obviousness
22.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18758813 POLARIZED PHOTOPLETHYSMOGRAPHY (PPG) BIOSENSORS, ARRAYS AND SYSTEMS Non-Final OA Samsung Electronics Co., Ltd.
18712289 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND NON-TRANSITORY RECORDING MEDIUM Final Rejection NEC Corporation
18593184 CHIP INTERCONNECT WITH OPTICAL AND DIFFERENTIAL SIGNAL INTERFACES Non-Final OA QUALCOMM Incorporated
18872881 TRACKING OBJECTS USING LIGHT SIGNALS Non-Final OA SIGNIFY HOLDING B.V.
18997851 Systems And Methods For Detecting An Irregularity Of An Object Non-Final OA Siemens Aktiengesellschaft
19170074 IMAGE SENSOR FOR PERFORMING AN ANALOG BINNING OPERATION Non-Final OA SK hynix Inc.
19081029 Mid-Infrared Optical Lens Assemblies for Confocal Laser Scanning Microscopy Non-Final OA The Board of Trustees of the University of Illinois

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Frequently Asked Questions

What is examiner Mai Thi Ngoc Tran's allowance rate?

86.2% of resolved applications examined by Mai Thi Ngoc Tran were allowed (145 resolved cases), compared with 68.3% across Art Unit 2834 over the last five years.

Does an interview help with examiner Mai Thi Ngoc Tran?

This examiner's interview lift is +4.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mai Thi Ngoc Tran take to allow a patent?

Applications allowed by Mai Thi Ngoc Tran took 838 days on average from filing to allowance.

Which art unit does examiner Mai Thi Ngoc Tran work in?

Mai Thi Ngoc Tran examines applications in Art Unit 2834 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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