Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 1687: Examiners and Allowance Rates

21 examiners • 14 with pending office actions • Biotechnology & Pharmaceuticals (Tech Center 1600)

Art unit baseline (last 5 years, 477 dispositions): 44% allowance rate • 5.2 office actions per allowance • 1,717 days median pendency
ExaminerAllowance rateResolved casesPending apps
Blake Harrison Elkins100.0%129
Rachel L Roberts100.0%10
Stephen R Koziol100.0%10
Hugh H Maupin100.0%10
Lori A Clow88.5%14828
Karlheinz R Skowronek66.7%240
Mary Chang Leverett63.0%7322
Joseph T Woitach57.0%8641
Diana Patricia Sanford47.1%1723
Joseph Constantine Pulliam44.9%4923
Noah Andrew Auger35.1%5721
Meredith Abbott Vassell34.0%5328
Steven William Bailey23.4%4750
Keenan Neil Anderson-Fears15.4%2647
Milana Kaye Thompson0.0%424
Connor Hammond Beveridge0.0%227
Chuen-Meei Gan0.0%10
Leah Elaine Sexton0.0%10
Bezawit Nolawi Shimeles0.0%10
Maranda Shurie Cantrell—011
Sharon Levine Graff—09

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 1687?

44.0% over the last five years, across 477 resolved applications.

Which examiners in Art Unit 1687 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Lori A Clow (88.5%, 148 resolved), Mary Chang Leverett (63.0%, 73 resolved), Joseph T Woitach (57.0%, 86 resolved).

Which examiners in Art Unit 1687 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Steven William Bailey (23.4%, 47 resolved), Meredith Abbott Vassell (34.0%, 53 resolved), Noah Andrew Auger (35.1%, 57 resolved).

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