Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 3621: Examiners and Allowance Rates

70 examiners • 15 with pending office actions • Transportation, E-Commerce & Mechanical Systems (Tech Center 3600)

Art unit baseline (last 5 years, 3,021 dispositions): 25% allowance rate • 5.8 office actions per allowance • 1,128 days median pendency
ExaminerAllowance rateResolved casesPending apps
Suk Jin Kang100.0%10
Chinedu Charles Agwumezie100.0%10
Thuy N Nguyen80.4%460
Pierre E Elisca77.4%1060
Daniel Lastra77.1%700
Alvin L Brown75.7%700
Maria Victoria Vanderhorst75.7%11123
Breffni Baggot67.5%7718
James A Reagan62.1%3430
Calvin K Cheung61.7%1070
Saba Dagnew59.2%7126
Raquel Alvarez59.0%390
Evens J Augustin57.6%1700
Jamie R Kucab56.6%1130
Marie P. Brady56.5%460
Michael W Schmucker52.6%190
Mario Cincinat Iosif50.0%280
Gautam Ubale50.0%20
John W Van Bramer49.2%1870
Azam A Ansari48.6%7415
Tarek Elchanti48.2%53521
Sam M Refai47.5%8018
Mamon A Obeid42.9%840
Christopher Stroud40.9%9328
Michael Bekerman40.2%23922
Christopher Conrad Busch37.3%5123
Jacob C Coppola35.1%4040
James M Detweiler35.1%42426
Charles Aaron Mcintyre35.0%600
Abhishek Vyas33.3%180
Stacie D Gatling33.3%30
Joshua A Murdough31.0%580
Waseem Ashraf30.0%106
Murali K Dega26.8%560
Mathew Richard Syrowik26.5%3414
Brendon Beheshti25.0%440
Nancy Loan T Le23.9%670
Dipen M Patel22.4%4921
Kiersten V Summers21.7%460
Shahid Kamal21.7%230
Chrystina E Zelaskiewicz21.7%2810
Christopher C Johns21.2%520
Krishan K Mittal20.8%240
Darnell A Pouncil20.5%2590
Alfred H Tsui19.8%860
Patrick Kim19.5%2000
Chinyere Mpamugo19.5%1950
Scott Snider18.0%8912
Khanh H Le17.6%170
Colleen A Hoar16.9%2010
Afaf Osman Bilal Ahmed15.6%320
Michael J Sittner14.5%7628
Tomas A Prieto14.3%70
Arthur D Duran13.3%300
Thomas C West12.9%310
Monica A Mandel12.3%2760
Rutao Wu10.3%290
Alexis M Casey9.7%310
Michael J Cross7.7%1810
Derek E Biehn0.0%490
Docket Tc 36000.0%50
Andrew J Fischer0.0%40
James A Kramer0.0%40
Ishmael A Rudolph0.0%10
Dennis William Ruhl0.0%10
Willie G Hendricks0.0%10
Brittney M Carroll0.0%10
Hajime S Rojas0.0%10
William A Brandenburg0.0%10
Fahd A Obeid0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 3621?

25.4% over the last five years, across 3,021 resolved applications.

Which examiners in Art Unit 3621 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Thuy N Nguyen (80.4%, 46 resolved), Pierre E Elisca (77.4%, 106 resolved), Daniel Lastra (77.1%, 70 resolved).

Which examiners in Art Unit 3621 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Derek E Biehn (0.0%, 49 resolved), Michael J Cross (7.7%, 181 resolved), Alexis M Casey (9.7%, 31 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