Prosecution Insights
Last updated: October 02, 2026

Examiner: TRAN, CHAU NGUYEN BICH

Tech Center 1600 • Art Units: 1677

This examiner grants 32% of resolved cases

Analysis

Chau Nguyen Bich Tran is an examiner in Tech Center 1600, Art Unit 1677. The examiner has 76 resolved cases. The data shows an allowance rate of 31.6 percent and an interview lift of 45.2 percent. The median days to allowance for these cases is 1464.

The 45.2 percent interview lift is a significant figure when compared to the 31.6 percent base allowance rate. This indicates that conducting an interview is a method for increasing the likelihood of an allowance. The 1464 day median pendency is the timeframe applicants can expect when navigating the resolved cases handled by this examiner in Art Unit 1677. Practitioners can consider how these metrics influence the overall prosecution timeline.

With 76 resolved cases, the examiner's statistics provide a view of the prosecution landscape. Practitioners can use the 31.6 percent allowance rate to assess the probability of a grant. The 45.2 percent lift and the Tech Center 1600 environment are factors for prosecution strategy. These data points help in setting expectations for clients.

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

Performance Statistics

31.6%
Allow Rate
-28.4% vs TC avg
109
Total Applications
+45.2%
Interview Lift
1464
Avg Prosecution Days
Based on 76 resolved cases, 2023–2026

Rejection Statute Breakdown

11.8%
§101 Eligibility
10.1%
§102 Novelty
43.3%
§103 Obviousness
22.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17045344 METHODS, USES AND KITS FOR MONITORING OR PREDICTING RESPONSE TO PERIODONTAL DISEASE TREATMENT Final Rejection KONINKLIJKE PHILIPS N.V.
17783180 COMPOSITIONS AND METHODS FOR IDENTIFYING AND MODULATING THROMBOTIC CONDITIONS IN A CANCER PATIENT Final Rejection Beth Israel Deaconess Medical Center, Inc.
16625137 SANDWICH-TYPE ASSAYS USING DECREASING SIGNAL PORTIONS OF DOSE RESPONSE CURVE TO MEASURE ANALYTES, INCLUDING ANALYTES AT HIGH CONCENTRATION Non-Final OA Becton, Dickinson and Company
18270749 BIOMARKER FOR DETERMINING FERTILITY, AND DETERMINING METHOD USING SAME Non-Final OA TOSOH CORPORATION
18643136 METHOD AND DEVICE FOR EVALUATING IMMUNE CELLS USING MAGNETIC PARTICLES Non-Final OA UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
18353056 B CELL MONITORING REAGENT PANEL AND REAGENT KIT FOR ANALYZING B CELL SUBSETS IN ANTI-CD20 TREATED AUTOIMMUNE PATIENTS Non-Final OA CYTEK BIOSCIENCES, INC.
17763992 COMPOSITIONS AND METHODS FOR DIAGNOSIS OF PERIPHERAL ARTERIAL DISEASE Final Rejection UNITY HEALTH TORONTO

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