Prosecution Insights
Last updated: October 02, 2026

Examiner: TRAN, VIVIAN AILINH

Tech Center 1700 • Art Units: 1794

This examiner grants 55% of resolved cases

Analysis

Vivian Ailinh Tran is an examiner in Tech Center 1700 and Art Unit 1794. The record includes 201 resolved cases. The allowance rate is 55.2 percent, which represents the frequency of grants for applications. These 201 resolved cases provide the data set for the examiner's historical performance. This volume of resolved cases forms the basis for the current metrics.

The interview lift is 43.0 percent, which measures the change in allowance probability after an interview. The median days to allowance is 1287, which is the duration for successful prosecution. In Art Unit 1794, these metrics offer a view of the examiner's past outcomes.

Practitioners should consider the 43.0 percent interview lift when planning their strategy. The 55.2 percent allowance rate and the 1287 median days to allowance are factors for managing expectations. These data points from Tech Center 1700 help in understanding the prosecution environment.

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

Performance Statistics

55.2%
Allow Rate
-9.8% vs TC avg
226
Total Applications
+43.0%
Interview Lift
1287
Avg Prosecution Days
Based on 201 resolved cases, 2023–2026

Rejection Statute Breakdown

4.4%
§101 Eligibility
10.5%
§102 Novelty
48.0%
§103 Obviousness
32.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18415736 OPENING FORMATION IN A MEMBRANE Final Rejection Roche Diabetes Care, Inc.
18501834 ANALYTE SENSOR AND A METHOD FOR ITS PRODUCING Non-Final OA Roche Diabetes Care, Inc.
18840098 ELECTROLYTE ANALYSIS DEVICE Final Rejection HITACHI HIGH-TECH CORPORATION
18161449 SENSOR CONTROL UNIT Non-Final OA DENSO CORPORATION
18861679 FLEXIBLE MULTIPARAMETRIC PLANT SENSORS AND METHODS OF MAKING AND USING THEREOF Non-Final OA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18859101 MICRONEEDLE-BASED PLANT SENSORS AND METHODS OF MAKING AND USING THEREOF Non-Final OA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18811886 METHOD OF RECONFIGURING OXYGEN CONCENTRATION ON METAL OXIDE AND METHOD OF OPERATING GAS SENSORS USING THE METHOD Non-Final OA Seoul National University R&DB FOUNDATION
18725295 ELECTRODE AND ELECTROCHEMICAL MEASUREMENT SYSTEM Non-Final OA NITTO DENKO CORPORATION
18852059 COMPACT SCALABLE DISSOLVED OXYGEN SENSOR Non-Final OA Yale University
18629616 METHODS TO AUTOMATICALLY CALIBRATE PH SENSORS WITHOUT SAMPLING Non-Final OA EMD Millipore Corporation
18533479 CONTACTING-TYPE CONDUCTIVITY SENSOR WITH CORROSION DIAGNOSTIC Final Rejection Rosemount Inc.

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