Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2100: Examiners and Allowance Rates

57 examiners • 4 with pending office actions • Computing & Software (Tech Center 2100)

Art unit baseline (last 5 years, 1,193 dispositions): 39% allowance rate • 6.0 office actions per allowance • 1,211 days median pendency
ExaminerAllowance rateResolved casesPending apps
Robert A Cassity100.0%380
Daniel W Kinsaul100.0%161
David T Brooks100.0%140
Omar F Fernandez Rivas100.0%40
Rehana Perveen100.0%40
Ann J Lo100.0%30
April Ying Shan Blair100.0%30
Ryan F Pitaro100.0%20
Wei Yun Mui100.0%20
Rocio Del Mar Perez-Velez100.0%10
Tamara Teslovich Kyle100.0%10
Marc M Duncan100.0%10
Michael D Yaary100.0%10
Kamini B Patel100.0%10
Renee D Chavez100.0%10
Jacob Andrew Petranek100.0%10
Sarai E Butler100.0%10
Narciso Eduardo Montes100.0%10
Humaira Zahin Mauni100.0%10
Bradley A Teets100.0%10
Dong U Kim100.0%10
Kamran Afshar100.0%10
Aniss Chad100.0%10
Alan S Chen100.0%10
Shirley D. Hicks100.0%10
Kenneth M Lo100.0%10
Ryan M Stiglic100.0%10
Jared Ian Rutz100.0%10
Brannon W Smith100.0%10
Gail O Hayes100.0%10
Jennifer N Welch100.0%10
Joseph D Manoskey100.0%10
Paulinho E Smith100.0%10
David Robert Vincent100.0%10
Hyungjun B Yi100.0%10
Richard L Bowen100.0%10
Andrew D Stclair95.3%430
Andrew C Goldberg71.4%70
Robert A Clarke66.7%66
John R Cottingham62.4%1,1730
Cesar B Paula50.0%20
Cordelia P K Zecher42.1%2161
Andrew T Caldwell20.0%50
Christyann R Pulliam0.0%220
Aimee J Li0.0%130
Charles Rones0.0%30
David Armand Wiley0.0%30
Zhi Chen0.0%10
Selina Elisa Hu0.0%10
Anita Nassiri Motlagh0.0%10
Lunsee Lao0.0%10
Peng Ke0.0%10
David Hoang Tran0.0%10
Phenuel S Salomon0.0%10
Andrew Tsutomu Chiusano0.0%10
Usmaan Saeed0.0%10
Lewis Alexander Bullock Jr.—03

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2100?

38.8% over the last five years, across 1,193 resolved applications.

Which examiners in Art Unit 2100 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Robert A Cassity (100.0%, 38 resolved), Andrew D Stclair (95.3%, 43 resolved), John R Cottingham (62.4%, 1,173 resolved).

Which examiners in Art Unit 2100 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Cordelia P K Zecher (42.1%, 216 resolved), John R Cottingham (62.4%, 1,173 resolved), Andrew D Stclair (95.3%, 43 resolved).

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