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Last updated: October 08, 2026

USPTO Art Unit 1672: Examiners and Allowance Rates

42 examiners • 12 with pending office actions • Biotechnology & Pharmaceuticals (Tech Center 1600)

Art unit baseline (last 5 years, 1,589 dispositions): 38% allowance rate • 2.0 office actions per allowance • 1,153 days median pendency
ExaminerAllowance rateResolved casesPending apps
John William Lippert100.0%10
Hayden R Brewster100.0%10
Barry A Chestnut92.5%10627
Nicole Erin Kinsey White91.1%13524
Agnieszka Boesen91.0%17824
Stacy Brown Chen89.7%19438
Brian J Davis89.0%3010
Deborah D Carr88.6%1840
George Steven Vanni86.0%930
John S Brusca85.7%840
Janet L Coppins84.4%2240
Cassandra Senn Grizer83.3%630
Shailendra Kumar82.6%2530
M Franco G Salvoza81.2%9640
Russell Scott Negin80.4%1070
Yate Kai Rene Cutliff79.5%2290
Yevgeny Valenrod76.7%1290
Patrick T Lewis75.9%2320
Thomas J Visone75.0%208
Yong Liang Chu74.9%2550
Blaine G Doletski73.9%1610
Ana Z Muresan68.3%1800
Sonya N Wright67.5%1910
Everett White67.1%1610
Danyal Hassan Alam66.7%334
Guozhen Liu64.8%540
Mary K Zeman62.0%500
Yih-Horng Shiao57.9%2160
Joseph T Woitach57.7%710
Claire Adrienne Cornelius50.0%423
Olivia M. Wise48.4%310
Mary Chang Leverett48.1%270
Ruixue Wang47.2%3647
Samadhan Jaising Jadhao47.2%3632
Steven William Bailey43.8%320
Kaitlyn L Minchella34.0%470
Nidhi Dharithreesan31.2%160
Marlene Vreni Buckmaster28.0%2517
Kettip Kriangchaivech25.0%120
Dylan C Jones18.2%110
Larry D Riggs II0.0%70
Ghazal Sabour0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 1672?

38.0% over the last five years, across 1,589 resolved applications.

Which examiners in Art Unit 1672 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Barry A Chestnut (92.5%, 106 resolved), Nicole Erin Kinsey White (91.1%, 135 resolved), Agnieszka Boesen (91.0%, 178 resolved).

Which examiners in Art Unit 1672 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Kaitlyn L Minchella (34.0%, 47 resolved), Steven William Bailey (43.8%, 32 resolved), Ruixue Wang (47.2%, 36 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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