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Last updated: October 25, 2026

USPTO Art Unit 2147: Examiners and Allowance Rates

42 examiners • 13 with pending office actions • Computing & Software (Tech Center 2100)

Art unit baseline (last 5 years, 1,208 dispositions): 47% allowance rate • 3.4 office actions per allowance • 1,147 days median pendency
ExaminerAllowance rateResolved casesPending apps
Matthew Ell100.0%20
Jennifer N Welch100.0%20
Abdullah Al Kawsar100.0%10
Paul M Knight100.0%10
Omar F Fernandez Rivas100.0%10
Barbara Henry Level100.0%10
Mariela D Reyes100.0%10
Majd Maher Haddad100.0%10
Ann J Lo100.0%10
Thai Q Phan97.2%1430
Hien Luongvan Duong88.3%13721
James T Tsai87.7%8128
Saif A Alhija87.5%80
Hassan Mrabi84.9%9319
Russell L Guill82.8%290
Bijan Mapar82.6%1210
Ababacar Seck72.2%1080
Eunhee Kim65.2%230
Robert S Brock52.8%360
Akash Saxena46.6%1030
Nhat Huy T Nguyen42.6%6828
Michael Edward Cocchi33.8%770
Joshua Eric Jensen29.4%340
Paul Michael Galvin-Siebenaler27.3%1121
Boris Gorney25.7%350
Bernard E Cothran25.4%710
Viker Alejandro Lamardo25.0%40
David Hoang Tran23.8%2123
Sally Thi Ley23.7%3819
Leah M Feitl23.5%5122
David Andrew Hopkins23.0%1000
Benjamin Matthew Rohd20.0%516
Pursottam Giri12.0%830
Daniel Duc Tran0.0%524
Hein Jeong0.0%40
Cordelia P K Zecher0.0%30
Gwynevere Amelia Deterding0.0%10
Cody Ryan Gillespie0.0%10
Van C Mang0.0%10
Yong Doo Rho—012
Pallavi Mamillapalli—03
Hao Thien Vong—03

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2147?

47.4% over the last five years, across 1,208 resolved applications.

Which examiners in Art Unit 2147 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Thai Q Phan (97.2%, 143 resolved), Hien Luongvan Duong (88.3%, 137 resolved), James T Tsai (87.7%, 81 resolved).

Which examiners in Art Unit 2147 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Pursottam Giri (12.0%, 83 resolved), David Andrew Hopkins (23.0%, 100 resolved), Leah M Feitl (23.5%, 51 resolved).

Data sourced from USPTO Patent File Wrapper (daily) and Office Action Archive (weekly). Analysis generated by IP Author.

Data: USPTO Patent File Wrapper (daily) • Office Action Archive (weekly) • 89M+ prosecution events

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