Prosecution Insights
Last updated: October 27, 2026

Keenan Alexander Bates, USPTO Patent Examiner

Listed by the USPTO as BATES, KEENAN ALEXANDER

Tech Center 1600 • Art Units: 1631 1632

This examiner grants 45% of resolved cases

Analysis

Keenan Alexander Bates serves in Tech Center 1600 and Art Unit 1631, focusing on a caseload that includes 78 resolved cases. The examiner maintains an allowance rate of 44.9 percent. The data reveals an interview lift of 79.8 percent, which suggests that interviews are a factor in moving applications toward allowance. This lift indicates a significant change in outcomes when oral communication is utilized.

The prosecution timeline shows a median of 1306 days to allowance. This duration suggests a long-term commitment for applicants seeking patent protection. The top companies appearing before this examiner include The Trustees of the University of Pennsylvania, Oxford University Innovation Limited, and University of Florida Research Foundation Inc. These institutional applicants, supported by firms such as BIRCH STEWART KOLASCH & BIRCH, LLP, FOLEY & LARDNER LLP, and GOODWIN PROCTER LLP, face the 44.9 percent allowance rate.

Given the 79.8 percent interview lift, practitioners should evaluate the role of direct communication. While the 78 resolved cases represent the current dataset, the impact of interviews is a prominent feature. The 1306-day median pendency underscores the time involved in navigating the 1600 tech center environment effectively with this examiner.

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

Performance Statistics

44.9%
Allow Rate
-15.1% vs TC avg
156
Total Applications
+79.8%
Interview Lift
1306
Avg Prosecution Days
Based on 78 resolved cases, 2023–2026

Rejection Statute Breakdown

4.6%
§101 Eligibility
20.5%
§102 Novelty
37.1%
§103 Obviousness
28.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17272203 ADENO-ASSOCIATED VIRAL VECTORS FOR THE TREATMENT OF BEST DISEASE Non-Final OA University of Florida Research Foundation, Incorporated
17280392 IN VITRO GROWTH METHOD FOR HAIR FOLLICULAR EPITHELIAL STEM CELLS Non-Final OA RIKEN
18406302 IMMUNOSELECTED UMBILICAL CORD-DERIVED MESENCHYMAL STEM CELLS (UC-MSCs) AND DOWNSTREAM BIOLOGICS Non-Final OA GLOBUS MEDICAL, INC.
17600820 Compositions and Methods for Allelic Gene Drive Systems and Lethal Mosaicism Final Rejection The Regents of the University of California
18721402 COMPOSITIONS AND METHODS FOR ESTABLISHMENT OF BOVINE-INDUCED PLURIPOTENT STEM CELLS Non-Final OA University of Connecticut
18041447 Methods of Protecting RNA Final Rejection Pfizer Inc.
17602730 METHODS OF MAKING CHIMERIC ANTIGEN RECEPTOR-EXPRESSING CELLS Non-Final OA The Trustees of the University of Pennsylvania
17601581 COMPOSITIONS AND METHODS FOR IN UTERO GENE EDITING FOR MONOGENIC LUNG DISEASE Final Rejection THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
17669874 PANCREATIC DIFFERENTIATION Non-Final OA Vertex Pharmaceuticals Incorporated
18648087 PRODUCTION METHOD OF MYOCARDIAL CELL LAYER, MYOCARDIAL CELL LAYER, AND USE THEREOF Non-Final OA OSAKA UNIVERSITY
18021675 METHOD OF MAKING RECOMBINANT AAVS Final Rejection Oxford University Innovation Limited
18021691 PROCESS FOR MAKING A RECOMBINANT AAV LIBRARY Final Rejection Oxford University Innovation Limited
17287972 ONCOLYTIC VIROTHERAPY AND IMMUNOTHERAPY Non-Final OA Baylor College of Medicine
18020734 METHOD FOR THE TREATMENT OF WWOX ASSOCIATED DISEASES Non-Final OA YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Keenan Alexander Bates's allowance rate?

44.9% of resolved applications examined by Keenan Alexander Bates were allowed (78 resolved cases), compared with 28.4% across Art Unit 1631 over the last five years.

Does an interview help with examiner Keenan Alexander Bates?

This examiner's interview lift is +79.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Keenan Alexander Bates take to allow a patent?

Applications allowed by Keenan Alexander Bates took 1,306 days on average from filing to allowance.

Which art unit does examiner Keenan Alexander Bates work in?

Keenan Alexander Bates examines applications in Art Unit 1631 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month