Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2648: Examiners and Allowance Rates

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

Art unit baseline (last 5 years, 4,843 dispositions): 74% allowance rate • 3.3 office actions per allowance • 1,198 days median pendency
ExaminerAllowance rateResolved casesPending apps
Shaima Q Aminzay100.0%160
Jacob F Betit100.0%10
Alicia Ha100.0%10
Minh D Dao96.2%2100
John J Lee93.7%1270
Sonny Trinh93.6%1090
Tuan Hoang Nguyen93.0%1580
Tan H Trinh92.6%7520
Dominic E Rego91.5%34319
Lana N Le90.4%21822
Andrew Wendell90.2%4899
April Guzman Gonzales89.2%68625
Eugene Yun89.0%43627
Philip Sobutka88.1%5450
Sanh D Phu87.5%960
Erkin Shavkatovich Abdullaev87.5%2420
Fabian Botello87.5%823
Quochien B Vuong87.2%780
David Bilodeau87.1%59512
Keith Ferguson86.9%3827
Tuan A Tran86.7%58811
Bobbak Safaipour85.9%3970
Sujatha R Sharma83.8%1600
Lewis G West82.9%4320
Cindy Huyen Trandai81.1%3076
Md K Talukder80.8%82421
Ping Y Hsieh79.8%1190
Wen Wu Huang78.5%65939
Devan A Sandiford77.7%3410
Duc M Nguyen77.6%850
Chung Tien Yang75.7%370
Angelica Perez70.7%820
Dong-Chang Shiue70.3%2590
Erica L Fleming-Hall67.3%520
Richard Chan65.0%1170
Gennadiy Tsvey61.9%65624
Maryam Soltanzadeh59.3%270
Rajarshi Chakraborty52.1%1690
James J Sterling50.0%20
Wesley Leo Kim46.0%5010
Alejandro Rivero41.5%410
Nay Aung Maung0.0%30
Temesghen Ghebretinsae0.0%30
Dikshya Kandel—03
Akram Manshalin—02
Thuan Huu Nguyen—01

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2648?

74.0% over the last five years, across 4,843 resolved applications.

Which examiners in Art Unit 2648 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Minh D Dao (96.2%, 210 resolved), John J Lee (93.7%, 127 resolved), Sonny Trinh (93.6%, 109 resolved).

Which examiners in Art Unit 2648 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Alejandro Rivero (41.5%, 41 resolved), Wesley Leo Kim (46.0%, 50 resolved), Rajarshi Chakraborty (52.1%, 169 resolved).

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