Prosecution Insights
Last updated: October 26, 2026

Andrew P Lee, USPTO Patent Examiner

Listed by the USPTO as LEE, ANDREW P

Tech Center 1600 • Art Units: 1621 1628 1629 1691

This examiner grants 48% of resolved cases

Analysis

LEE, ANDREW P works in Tech Center 1600 and Art Unit 1621. The record includes 594 resolved cases, an allowance rate of 48.5%, and a median of 1215 days to allowance. Interviews are associated with a 22.8% lift in allowance outcomes. The data indicates that applicants should anticipate meaningful prosecution work and may benefit from purposeful examiner engagement.

The listed companies are Auspex Pharmaceuticals LLC, Gilead Sciences Inc., and The Regents of the University of Michigan. The listed firms are BakerHostetler, Clark+Elbing LLP, and Arnall Golden Gregory LLP. Counsel can use interviews to explore claim direction while planning for the longer pendency reflected in the record.

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

Performance Statistics

48.5%
Allow Rate
-11.5% vs TC avg
654
Total Applications
+22.8%
Interview Lift
1215
Avg Prosecution Days
Based on 594 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
7.8%
§102 Novelty
57.0%
§103 Obviousness
21.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18279232 Small Molecule Degraders of CBP/p300 Proteins Non-Final OA THE REGENTS OF THE UNIVERSITY OF MICHIGAN
18466041 IMPROVED ANIMAL FEED COMPOSITIONS AND METHODS OF USE Final Rejection Syngenta Participations AG
17771737 THERAPEUTIC APPROACH FOR TREATING INFLAMMATORY BOWEL DISEASE Final Rejection THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
18336712 THE MODE OF ACTION OF N-MeDCPA ON TRPC CHANNELS Non-Final OA The United States Government as represented by the Department of Veterans Affairs

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Frequently Asked Questions

What is examiner Andrew P Lee's allowance rate?

48.5% of resolved applications examined by Andrew P Lee were allowed (594 resolved cases), compared with 46.0% across Art Unit 1621 over the last five years.

Does an interview help with examiner Andrew P Lee?

This examiner's interview lift is +22.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Andrew P Lee take to allow a patent?

Applications allowed by Andrew P Lee took 1,215 days on average from filing to allowance.

Which art unit does examiner Andrew P Lee work in?

Andrew P Lee examines applications in Art Unit 1621 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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