Prosecution Insights
Last updated: October 01, 2026

Examiner: COLENA, TRACY CHING-TIAN

Tech Center 1700 • Art Units: 1797 1798

This examiner grants 80% of resolved cases

Analysis

Tracy Ching-Tian Colena is a patent examiner in Art Unit 1797 of Tech Center 1700. She has 20 resolved cases in her record. The data shows an allowance rate of 80.0% for these applications. This percentage represents the frequency of grants among the 20 resolved cases. Practitioners should note this 80.0% rate when developing a strategy for prosecution with this examiner.

The median days to allowance is 1157. This figure provides the timeline for applications that reach a grant. The interview lift is 42.2%. This positive lift indicates that cases with an interview have a higher allowance rate than those without an interview. The 42.2% lift suggests that direct communication correlates with an increased probability of success. The 1157 median days to allowance and the 1797 Art Unit designation are key data points for applications in Tech Center 1700.

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

Performance Statistics

80.0%
Allow Rate
+15.0% vs TC avg
32
Total Applications
+42.2%
Interview Lift
1157
Avg Prosecution Days
Based on 20 resolved cases, 2023–2026

Rejection Statute Breakdown

10.8%
§101 Eligibility
23.3%
§102 Novelty
50.8%
§103 Obviousness
10.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18397259 DEVICE AND METHOD FOR OBSERVING FLUORESCENCE OR LUMINESCENCE OF A MOVING PARTICLE Non-Final OA COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
18700666 GLYCAN AGE PREDICTION MODEL Non-Final OA The Regents of the University of California
18228399 Measurement, Reporting, And Verification (MRV) For Ocean Carbon Dioxide Removal Systems Final Rejection Ebb Carbon, Inc.

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