Prosecution Insights
Last updated: October 26, 2026

Koyeli Banerjee, USPTO Patent Examiner

Listed by the USPTO as BANERJEE, KOYELI

Tech Center 1600 • Art Units: 1654 1658 1675 1699

This examiner grants 33% of resolved cases

Analysis

BANERJEE, KOYELI is assigned to Tech Center 1600 and Art Unit 1654. The profile contains 3 resolved cases, a 33.3% allowance rate, and a median of 1138 days to allowance. The very small record means that the figures provide limited evidence of a stable prosecution pattern.

The interview lift is 0.0%, so the available record does not show an interview-associated increase. The listed companies are Spitfire Pharma LLC, University of Southern California, and Amgen Inc. The leading firms are Additon, Pendleton & Witherspoon, P.A., AMSTER, ROTHSTEIN & EBENSTEIN LLP, and Baker, Donelson, Bearman, Caldwell & Berkowitz, PC. Practitioners should treat the profile as directional and rely heavily on the facts of the individual application.

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

Performance Statistics

33.3%
Allow Rate
-26.7% vs TC avg
36
Total Applications
+0.0%
Interview Lift
1138
Avg Prosecution Days
Based on 3 resolved cases, 2023–2026

Rejection Statute Breakdown

10.1%
§101 Eligibility
14.7%
§102 Novelty
36.7%
§103 Obviousness
24.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18483597 COMPOUND, COMPOSITION AND METHODS FOR LOWERING CIRCULATING GLUCOSE Non-Final OA THE HONG KONG POLYTECHNIC UNIVERSITY
18695526 PEPTIDE HAVING ACTIVITY OF PREVENTING HAIR LOSS OR PROMOTING HAIR GROWTH AND USE THEREOF Non-Final OA CAREGEN CO., LTD.

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Frequently Asked Questions

What is examiner Koyeli Banerjee's allowance rate?

33.3% of resolved applications examined by Koyeli Banerjee were allowed (3 resolved cases), compared with 48.5% across Art Unit 1654 over the last five years.

Does an interview help with examiner Koyeli Banerjee?

This examiner's interview lift is +0.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Koyeli Banerjee take to allow a patent?

Applications allowed by Koyeli Banerjee took 1,138 days on average from filing to allowance.

Which art unit does examiner Koyeli Banerjee work in?

Koyeli Banerjee examines applications in Art Unit 1654 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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