Prosecution Insights
Last updated: October 02, 2026

Examiner: PHAN, ANNETTE HOANG-ANH

Tech Center 2800 • Art Units: 1736 2896

This examiner grants 72% of resolved cases

Analysis

Annette Hoang-Anh Phan has resolved 46 cases in Tech Center 2800 and Art Unit 1736. The allowance rate is 71.7 percent, indicating a generally favorable environment for applicants in the chemical and materials arts. This 71.7 percent rate suggests that more than seven out of ten applications reach a successful conclusion. The 46 resolved cases provide a reasonable sample for understanding the examiner's initial prosecution patterns. Practitioners can expect a generally receptive environment for their claims.

The interview lift is 9.8 percent, showing a modest improvement in the probability of allowance following a verbal discussion. This 9.8 percent lift can be a useful tool for navigating the 1199-day median pendency. The median days to allowance is 1199, which suggests a relatively long prosecution timeline for cases that reach a grant. Practitioners should factor this 1199-day period into their strategic planning and client communications. The data indicates that the 71.7 percent allowance rate is a stable baseline that can be further improved through direct engagement with the examiner.

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

Performance Statistics

71.7%
Allow Rate
+3.7% vs TC avg
60
Total Applications
+9.8%
Interview Lift
1199
Avg Prosecution Days
Based on 46 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
24.9%
§102 Novelty
51.4%
§103 Obviousness
20.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17781780 STEEL MESH BASED CATALYST WITH SUPERIOR MECHANICAL STABILITY / MAGNETIC SEPARABILITY Non-Final OA University of South Carolina
18246071 BISMUT CONTAINING DIESELOXIDATION CATALYST Non-Final OA UMICORE AG & CO. KG

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