Prosecution Insights
Last updated: October 08, 2026

USPTO Art Unit 2649: Examiners and Allowance Rates

57 examiners • 18 with pending office actions • Communications (Tech Center 2600)

Art unit baseline (last 5 years, 5,037 dispositions): 65% allowance rate • 2.7 office actions per allowance • 917 days median pendency
ExaminerAllowance rateResolved casesPending apps
Stacey A Sorawat100.0%40
Jeanette J Parker100.0%10
Joshua L Schwartz100.0%10
Md K Talukder100.0%10
Daniel Christian Paglia100.0%10
Sonny Trinh98.8%830
John J Lee95.2%49818
Tuan Hoang Nguyen94.7%54516
Quochien B Vuong94.0%500
Nhan T Le92.8%6230
Hai V Nguyen90.4%70918
Thanh C Le89.8%3710
Lester G Kincaid89.1%5529
Blane J Jackson89.0%3900
Lee Nguyen88.7%5590
Tilahun Gesesse87.9%3970
Charles Chiang Chow87.5%80
Angelica Perez86.5%37918
Marceau Milord86.4%2350
Ayodeji O Ayotunde86.2%60811
Ganiyu A Hanidu85.8%2820
Tuan Pham85.8%6409
Fayyaz Alam85.6%4500
Ajibola A Akinyemi85.5%73227
Nguyen Thanh Vo85.2%4470
Shaima Q Aminzay85.1%1740
Swati Jain84.5%12934
Mohammed Rachedine83.5%4010
Christian A Hannon83.0%1590
Ankur Jain82.5%4519
Pablo N Tran81.3%2990
Samuel Hayden Leonard81.1%3716
Tu X Nguyen80.5%3030
Simon Nguyen80.4%4490
Golam Sorowar80.4%4280
Zhitong Chen76.9%54021
Max Mathew76.0%2040
Xin Jia74.1%2160
Erica L Fleming-Hall72.7%330
Raymond S Dean69.3%3650
Junpeng Chen68.0%3590
Ralph H Justus67.5%1690
Mario Ricardo Campero Miramonte66.7%325
Hsinchun Liao64.6%3280
Rui Meng Hu64.2%2710
Paul P Tran62.4%2210
Fatuma G Sherif60.1%3388
Fanghwa Wang51.4%1810
Zhiyu Lu36.6%2540
Mark Woodall34.0%530
Yuwen Pan21.0%814
Edward F Urban14.3%70
Joseph H Tam0.0%30
Sayed T Zewari0.0%10
Matthew James Dwyer—024
Seahvosh J Nikmanesh—016
Benjamin Huy Dinh Nguyen—011

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2649?

65.4% over the last five years, across 5,037 resolved applications.

Which examiners in Art Unit 2649 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Sonny Trinh (98.8%, 83 resolved), John J Lee (95.2%, 498 resolved), Tuan Hoang Nguyen (94.7%, 545 resolved).

Which examiners in Art Unit 2649 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Yuwen Pan (21.0%, 81 resolved), Mark Woodall (34.0%, 53 resolved), Zhiyu Lu (36.6%, 254 resolved).

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