Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 1657: Examiners and Allowance Rates

47 examiners • 13 with pending office actions • Biotechnology & Pharmaceuticals (Tech Center 1600)

Art unit baseline (last 5 years, 2,969 dispositions): 35% allowance rate • 5.5 office actions per allowance • 1,315 days median pendency
ExaminerAllowance rateResolved casesPending apps
Sharon M Papciak100.0%142
Larry J Moore100.0%60
Chunyuan Luo100.0%50
Kade Ariani100.0%20
Luke Alan Boralsky100.0%10
Qiuwen Mi100.0%10
John P Zimmermann100.0%10
Maryam Monshipouri100.0%10
Heidi L Reese82.2%2190
Leon B Lankford Jr.80.6%46326
Rosanne Kosson80.4%3270
Herbert J Lilling78.1%2370
Ralph J Gitomer71.7%8830
Trevor Logan Kane68.8%11220
Robert J Yamasaki67.4%56721
Kailash C Srivastava64.9%2850
Aaron J Kosar64.9%2080
Kara D Johnson62.3%2470
Satyendra K Singh62.1%65531
Amanda P Wood60.0%100
Lisa Joe Hobbs59.5%3930
Charles Z Constantine59.0%43212
Bin Shen58.7%1040
Sandra E Saucier58.5%1590
Candice Lee Swift56.6%12943
David M Naff55.5%3370
Paul C Martin55.1%1180
Rachel E Martin54.9%7111
Teresa E Knight52.8%2120
Srikanth Patury52.0%1270
Anjali Ajit Hirani49.6%1210
Thane E Underdahl45.2%3050
Vera Afremova43.4%1430
John Paul Selwanes43.3%600
Mary Abou Nader Crum39.2%9729
Jessica Faye Edwards38.3%4731
Alexander Marsh Duryee32.7%9829
Deepa Mishra28.9%8330
Tiffany Maureen Gough28.2%710
Stephen A Perkins24.7%970
Kimberly Catherine Breen23.8%8439
Louise Wang Zhiying Humphrey23.2%820
Jon P Weber21.1%190
Christopher A Keller19.5%820
Laura J Schuberg19.2%2810
Melenie Lee Gordon0.0%30
Bennett M Celsa0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 1657?

34.7% over the last five years, across 2,969 resolved applications.

Which examiners in Art Unit 1657 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Heidi L Reese (82.2%, 219 resolved), Leon B Lankford Jr. (80.6%, 463 resolved), Rosanne Kosson (80.4%, 327 resolved).

Which examiners in Art Unit 1657 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Laura J Schuberg (19.2%, 281 resolved), Christopher A Keller (19.5%, 82 resolved), Louise Wang Zhiying Humphrey (23.2%, 82 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