Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2661: Examiners and Allowance Rates

56 examiners • 14 with pending office actions • Communications (Tech Center 2600)

Art unit baseline (last 5 years, 4,321 dispositions): 73% allowance rate • 2.7 office actions per allowance • 913 days median pendency
ExaminerAllowance rateResolved casesPending apps
Michael Mario Sofroniou100.0%415
Xiaoli Zhang100.0%20
Rachel Yen Vi Dang100.0%29
Matthew C Bella100.0%20
Andrew W. Bee100.0%10
Vu Le100.0%10
Nancy Bitar100.0%10
Hernan Arias100.0%10
David Robert Vincent100.0%10
Leon Flores94.0%3190
Aaron W Carter93.8%22416
Tuan V Ho93.2%2660
Fayyaz Alam93.0%710
Yogesh K Aggarwal92.2%4080
Pinalben V Patel91.8%2310
Santiago Garcia91.1%900
Delomia L Gilliard90.6%71225
Kevin Ky88.9%270
Amandeep Singh Saini88.8%2690
Jonathan S Lee88.7%1940
Kyla Guan-Ping Ti Allen88.0%7526
Wesley J Tucker87.9%18217
Edward Park87.1%620
Idowu O Osifade86.8%380
Courtney J Windsor86.5%22327
Stephen P Coleman85.9%3190
Bernard Krasnic85.5%1380
Shahbaz Nazrul84.6%2670
Hung H Lam83.7%2270
Jiangeng Sun83.5%1640
Joshua Brigham Crockett82.5%4010
Xuemei G Chen82.1%17917
Michelle M Hausmann82.0%2330
Kathleen M Broughton80.9%22523
Anthony J Daniels80.7%2850
Shaghayegh Azima80.2%1260
Qun Shen79.7%2270
Selam T Gebriel79.2%2310
Han Dinh Hoang79.0%16223
Albert H Cutler78.9%3560
Paul M Berardesca78.6%3090
Alejandro Hernandez78.0%508
Zhenzhen Wu77.7%1750
John M Villecco76.6%1588
Xi Wang76.4%2160
Alexander John Rodgers76.2%424
Daniel M Pasiewicz75.2%2420
Christopher K Peterson74.2%2990
Raphael M Schwartz73.7%1180
Sean M Conner73.7%380
Mark T Monk68.1%2100
Jason A Flohre67.8%3110
Timothy Wing Ho Choi53.0%1150
Vincent M Rudolph50.0%80
Sinh N Tran16.7%60
Jennifer Mehmood0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2661?

72.7% over the last five years, across 4,321 resolved applications.

Which examiners in Art Unit 2661 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Leon Flores (94.0%, 319 resolved), Aaron W Carter (93.8%, 224 resolved), Tuan V Ho (93.2%, 266 resolved).

Which examiners in Art Unit 2661 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Timothy Wing Ho Choi (53.0%, 115 resolved), Jason A Flohre (67.8%, 311 resolved), Mark T Monk (68.1%, 210 resolved).

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