Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 1653: Examiners and Allowance Rates

39 examiners • 16 with pending office actions • Biotechnology & Pharmaceuticals (Tech Center 1600)

Art unit baseline (last 5 years, 4,199 dispositions): 24% allowance rate • 5.5 office actions per allowance • 1,210 days median pendency
ExaminerAllowance rateResolved casesPending apps
Nita M Minnifield100.0%10
Kareen Kay Thomas100.0%10
Celine X Qian100.0%10
Gyan Chandra100.0%10
Dennis Michael White100.0%10
Bin Shen75.8%7450
Allison M Fox70.4%3990
Douglas F White68.8%2980
Susan Marie Hanley65.0%6550
Jennifer M.H. Tichy64.6%61854
Stephen M Chong57.0%1790
Erin M Bowers54.6%55337
Nghi V Nguyen53.6%49441
Sean C Barron52.7%62077
Vera Afremova51.8%74336
Qing Xu47.3%2050
Emily Fay Eix47.1%3439
Kailash C Srivastava45.5%110
Paul C Martin39.6%71348
Satyendra K Singh37.5%160
Natalie M Moss30.7%52441
Lora E Barnhart Driscoll29.0%2480
Lioubov G Korotchkina29.0%6235
Damon Bowe27.8%720
Paul D Pyla27.6%3220
Enusha Karunasena25.0%420
Ashley Taylor White23.8%2125
Sheridan R Macauley22.1%2490
Shannon L Janssen19.0%1160
Natalie Nmn Iannuzo12.2%4145
Sharmila Gollamudi Landau12.0%12515
Stephanie A N Mcneil10.9%3203
Sandra Zingarelli6.7%3017
Asher French Anderson0.0%120
Emmalee Rae Williams0.0%228
Sue Xu Liu0.0%20
Kevin Greenwood0.0%10
Ruth A Davis0.0%10
Gurpreet Kaur0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 1653?

23.5% over the last five years, across 4,199 resolved applications.

Which examiners in Art Unit 1653 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Bin Shen (75.8%, 745 resolved), Allison M Fox (70.4%, 399 resolved), Douglas F White (68.8%, 298 resolved).

Which examiners in Art Unit 1653 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Sandra Zingarelli (6.7%, 30 resolved), Stephanie A N Mcneil (10.9%, 320 resolved), Sharmila Gollamudi Landau (12.0%, 125 resolved).

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