Prosecution Insights
Last updated: October 04, 2026

Examiner: LO, ANN J

Tech Center 2100 • Art Units: 2100 2125 2126 2128 2131 2141 2145 2147 2148 2154

This examiner grants 46% of resolved cases

Analysis

Ann J. Lo, in Tech Center 2100 and Art Unit 2100, has processed 232 resolved cases. The allowance rate is 46.1 percent. The interview lift of 26.3 percent shows that direct engagement with the examiner significantly improves the chances of obtaining a patent.

The median days to allowance is 1680, which is a long duration for the prosecution cycle. This 1680-day figure is a key planning factor for applicants in this art unit. With 232 resolved cases, the examiner's 46.1 percent allowance rate provides a clear baseline for expectations.

Practitioners should consider the 26.3 percent interview lift as a way to potentially shorten the 1680-day timeline or overcome rejections. Given the 46.1 percent allowance rate, every advantage is important. The 1680-day median to allowance suggests that applicants must be prepared for an extended commitment to see a case through to grant.

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

Performance Statistics

46.1%
Allow Rate
-8.9% vs TC avg
241
Total Applications
+26.3%
Interview Lift
1680
Avg Prosecution Days
Based on 232 resolved cases, 2023–2026

Rejection Statute Breakdown

14.2%
§101 Eligibility
23.2%
§102 Novelty
38.2%
§103 Obviousness
21.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
15237970 METHOD AND SYSTEM FOR MULTI-LABEL PREDICTION Final Rejection YAHOO ASSETS LLC

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