Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2172: Examiners and Allowance Rates

43 examiners • 10 with pending office actions • Computing & Software (Tech Center 2100)

Art unit baseline (last 5 years, 1,113 dispositions): 49% allowance rate • 6.4 office actions per allowance • 1,301 days median pendency
ExaminerAllowance rateResolved casesPending apps
Nathan K Shrewsbury100.0%410
Henry Vuu100.0%30
Subrata R Paul100.0%20
Backhean Tiv100.0%10
Douglas Godbold100.0%10
David Phantana Angkool93.7%19115
Seth Adam Silverman92.7%11023
Anil K Bhargava92.2%904
Andrey Belousov87.8%8216
Wilson W Tsui84.8%13834
Benjamin J Smith81.7%9314
Henry W Orr75.7%7433
Ayesha E Huertas Torres72.8%1730
Linda Tang Huynh71.9%5718
David Faber70.3%10133
Omar R Abdul-Ali68.6%510
Mandrita Brahmachari64.0%1250
Rinna Yi64.0%1860
Namitha Pillai63.5%850
Roberto Borja62.5%320
Bille M Dahir62.5%160
Matthew Ell62.0%2420
Adam M Queler60.0%100
Justin S Lee57.6%1320
Richard M Russell55.0%200
Nhat Huy T Nguyen53.3%1200
Maria S Ayad53.3%4513
Angie M Badawi53.0%1490
Alvin H Tan52.3%2410
John M Heffington50.0%2220
Sabrina Leticia Greene46.2%910
Sara M England43.7%1260
Mohamed Abou El Seoud42.2%640
Ece Hur39.9%1430
Elizabeth G Wright29.4%680
Andres E Gutierrez28.6%210
Daeho D Song28.6%140
Brandon Parker26.3%190
Paul A Thatcher11.6%860
William Wong3.3%300
Boris M Pesin0.0%130
Jeffrey A Gaffin0.0%110
David H Tan0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2172?

49.0% over the last five years, across 1,113 resolved applications.

Which examiners in Art Unit 2172 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Nathan K Shrewsbury (100.0%, 41 resolved), David Phantana Angkool (93.7%, 191 resolved), Seth Adam Silverman (92.7%, 110 resolved).

Which examiners in Art Unit 2172 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: William Wong (3.3%, 30 resolved), Paul A Thatcher (11.6%, 86 resolved), Elizabeth G Wright (29.4%, 68 resolved).

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