Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 1742: Examiners and Allowance Rates

39 examiners • 16 with pending office actions • Chemistry & Materials (Tech Center 1700)

Art unit baseline (last 5 years, 5,858 dispositions): 58% allowance rate • 3.4 office actions per allowance • 996 days median pendency
ExaminerAllowance rateResolved casesPending apps
Mordecai Mizani Leavitt100.0%623
David Andrew Calderon100.0%419
Robert J Warden100.0%30
Daniel J Jenkins100.0%10
Baileigh K Darnell100.0%10
Hannah J Pak100.0%10
Yung-Sheng M Tsui100.0%10
Virak Nguon100.0%10
Shibin Liang100.0%10
Zachary M Davis100.0%10
Christyann R Pulliam100.0%10
Audra Jean Destefano100.0%10
Emmanuel S Luk100.0%10
Peter A Salamon100.0%10
Leo B Tentoni84.3%1,28020
Monica Anne Huson83.6%1,18535
Kelsey C Grace80.4%3065
Mohammad M Ameen76.3%44316
Stella Kim Yi76.3%89415
Xue H Liu75.3%82916
Matthew J Daniels71.4%69940
Larry W Thrower67.8%6770
Benjamin A Schiffman67.7%88316
Mathieu D Vargot66.5%1,0520
Saeed M Huda65.7%1690
Jeffrey Michael Wollschlager65.4%87441
Asha A Thomas64.6%480
Galen H Hauth63.4%7710
Andrew D Graham59.5%38330
Kimberly Ann Stewart59.1%220
Atul P Khare56.9%65210
Yunju Kim55.3%47938
Armand Melendez46.9%2730
Christina Ann Johnson42.3%9726
Michael T Piery35.5%620
Patrick Neal Butler31.7%1890
David Schmerfeld30.4%560
William T Leader0.0%10
Hannah Elizabeth Ketcham—016

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 1742?

58.3% over the last five years, across 5,858 resolved applications.

Which examiners in Art Unit 1742 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Leo B Tentoni (84.3%, 1,280 resolved), Monica Anne Huson (83.6%, 1,185 resolved), Kelsey C Grace (80.4%, 306 resolved).

Which examiners in Art Unit 1742 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: David Schmerfeld (30.4%, 56 resolved), Patrick Neal Butler (31.7%, 189 resolved), Michael T Piery (35.5%, 62 resolved).

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