Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 1793: Examiners and Allowance Rates

124 examiners • 13 with pending office actions • Chemistry & Materials (Tech Center 1700)

Art unit baseline (last 5 years, 4,384 dispositions): 25% allowance rate
ExaminerAllowance rateResolved casesPending apps
Xiaobei Wang100.0%50
Stanley S Silverman100.0%10
Ahmed Abdel Rahman100.0%10
Kelly Jo Bekker100.0%10
Helene G Klemanski88.8%1690
Timothy C Vanoy88.4%3100
Brent T O'Hern87.9%49434
Serena Hanor Aldrich79.4%630
Michelle M Hou79.3%920
Elizabeth A Bolden78.7%1220
George P Wyszomierski78.7%1780
Patricia L Hailey77.9%1630
Brent T O Hern76.5%850
Anthony J Green76.3%2240
Edward M Johnson76.2%1260
Tima Michele Mcguthry Banks76.1%1840
Kiley Shawn Stoner75.2%1210
Ngoclan Thi Mai74.8%1030
Carol M Koslow74.7%2570
Paul D Marcantoni74.3%1670
Veronica F Faison74.0%1040
Daniel J Berns73.4%940
Cam N Nguyen73.0%1890
David M Brunsman72.6%1060
Smita S Patel72.5%510
Noah S Wiese71.8%1490
Steven J Bos71.2%1700
Kevin P Kerns70.8%2400
Karl E Group70.7%1880
John P Sheehan70.4%1350
Kenneth I Vaden69.0%420
Elizabeth D Wood68.8%1760
Jared M Wood68.3%600
Syed Taha Iqbal68.1%470
Scott R Kastler67.3%2050
Michael Aboagye67.0%1060
Helen F Heggestad63.1%5290
Wayne A Langel62.7%2630
Deborah Yee62.4%2050
Stefanie J Cohen59.7%620
Kallambella M Vijayakumar59.4%1380
Eli S Mekhlin59.3%270
Richard M Rump58.6%990
Diana J Liao58.3%720
Kuang Y Lin58.2%1530
Kevin E Yoon58.0%690
James A Fiorito56.7%970
Mark L Shevin55.6%1350
Sarah A Slifka54.8%620
Melissa Stalder Swain54.0%1000
Leslie A Wong53.3%6470
Stuart L Hendrickson53.0%1150
Jessee Randall Roe52.7%1310
Brittany M Martinez51.9%1060
Pegah Parvini51.8%1370
James E Mcdonough51.8%1140
Paul A Wartalowicz51.5%990
Janell Combs Morillo51.3%760
Jennifer C Mcneil50.0%3036
Christine Chen50.0%20
Erin Barry Saad49.0%980
Michele Lynn Jacobson48.7%7835
Jennifer A Smith47.9%710
Michael A Marcheschi47.5%400
Sheng Han Davis47.4%780
Kevin M Johnson47.2%890
Subbalakshmi Prakash47.1%69435
Anthony J Zimmer47.0%1000
Daniel Mccracken46.3%1230
Weiping Zhu45.1%1330
Yun Qian43.4%760
Carlos Barcena42.9%350
Jie Yang42.8%1450
Yoshitoshi Takeuchi42.6%470
Jun Li42.1%570
Guinever S Gregorio41.8%790
Megha Mehta Gaitonde40.5%840
Alexander Polyansky40.0%700
Nicholas P D'Aniello39.5%760
Jeffrey P Mornhinweg38.8%55250
Steven S Ha38.7%310
Caitlin Anne Kiechle38.3%940
Lois L Zheng37.0%1000
Brian D Walck36.2%580
John A Hevey36.0%250
Rebecca Y Lee35.2%540
Christopher S Kessler34.7%980
Michael Forrest33.9%560
Joseph Micali32.8%670
James Anthony John Corno Jr.32.8%670
Devang R Patel32.7%1100
Heng M Chan31.8%220
Shuangyi Abu Ali31.7%1200
Sikyin Ip31.2%1280
Carlos J Gamino30.0%800
Pritesh D Darji30.0%400
Matthew E Hoban29.9%770
Vanessa Tibay Luk28.9%760
Lien Thuy Tran28.7%70564
Felicia C Turner28.3%50847
Colin W Slifka28.2%390
Aileen Baker Felton27.9%430
Colette B Nguyen26.8%560
Changqing Li26.7%2360
Hong Thi Yoo26.2%2020
Bijay S Saha25.6%390
Patricia Ann George25.4%6220
Carrie Lynn Stoffel Glimm25.3%7916
Ngoc Yen M Nguyen24.1%830
Bhaskar Mukhopadhyay19.8%2980
Walter A Moore18.1%2710
Jacky Yuen17.1%410
Tynesha L. Mcclain16.6%40436
Amanda Salata Hawkins15.4%2644
Amber M Cox14.5%1650
Saeeda Monee Latham14.5%690
Emily M Le10.0%11017
James Paul Shellhammer10.0%2047
Lark Julia Moreno0.0%1435
Humera N Sheikh0.0%100
Jerry A Lorengo0.0%30
Melvin C Mayes0.0%20
Stephanie Rae Gerla0.0%10
John J Norton0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 1793?

25.1% over the last five years, across 4,384 resolved applications.

Which examiners in Art Unit 1793 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Helene G Klemanski (88.8%, 169 resolved), Timothy C Vanoy (88.4%, 310 resolved), Brent T O'Hern (87.9%, 494 resolved).

Which examiners in Art Unit 1793 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Emily M Le (10.0%, 110 resolved), Saeeda Monee Latham (14.5%, 69 resolved), Amber M Cox (14.5%, 165 resolved).

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