Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 3662: Examiners and Allowance Rates

83 examiners • 29 with pending office actions • Transportation, E-Commerce & Mechanical Systems (Tech Center 3600)

Art unit baseline (last 5 years, 6,122 dispositions): 61% allowance rate • 4.5 office actions per allowance • 1,165 days median pendency
ExaminerAllowance rateResolved casesPending apps
Ali Wahab100.0%20
Sven J Lohse100.0%10
Thomas H Tarcza100.0%10
John B Vigushin95.8%240
John B Sotomayor93.9%980
Dao Linda Phan90.7%3220
Mahmoud S Ismail89.2%80423
Harry K Liu88.8%2410
Brandon Dongpa Lee88.0%10018
Bernarr E Gregory87.2%3040
Yonel Beaulieu87.0%230
Robert T Payne86.7%300
Tuan C To86.1%5090
Yuri Kan86.0%1,08012
Daniel T Pihulic86.0%2850
Dana Deshawn Ivey85.8%16219
Antoine J Bedard85.7%70
Cuong H Nguyen85.5%2340
Shardul D Patel85.4%5410
Fred H Mull84.2%190
Dale W Hilgendorf84.1%85012
Calvin K Cheung83.2%1310
Luke D Ratcliffe82.7%3120
James R Hulka81.8%220
Kelly D Williams81.0%2740
Timothy A Brainard80.7%2800
Alyssa N Rorie80.0%906
Helal A Algahaim80.0%600
Peter M Bythrow79.7%1480
Paul A Castro78.3%2810
Nikki Marie M Molina78.3%11519
Ig Tai An78.0%27326
Nga X Nguyen78.0%76319
Michael P Fouche77.8%360
Majdi A Alsomiri75.9%1330
Isam A Alsomiri75.0%1240
Behrang Badii75.0%80
Rebecca A Wagner75.0%80
Jerrah Edwards74.6%670
Frank J Mcgue74.4%780
Isaac G Smith72.5%57116
Matthew M Barker72.3%1410
Jennifer Marie Anda72.2%16212
Aniss Chad71.0%628
Redhwan K Mawari70.1%770
Madison Renee Inserra70.0%21014
Elijah W. Vaughan70.0%100
Jelani A Smith69.9%2764
Ian J Lobo69.4%2480
Andrew R Dyer68.6%23636
Alexander Connor Bost68.4%1140
Melanie Jene Patrick68.4%570
Mahmoud M Kazimi68.1%1130
Davin Seol67.6%17922
Stephanie T Su67.3%16518
Christine Nguyen Huynh66.9%14515
Chase Littlejohn Cooley66.8%19025
Toya R Pettiegrew65.8%18719
Genna M Mott65.6%3050
Donald Joseph Wallace64.4%1600
Bakari Underwood64.3%140
Charles J Han63.8%2540
Gregory C Issing63.3%1990
George A Alcorn III61.3%758
Nada Mahyoob Alqaderi61.3%310
Mathew Franklin Gordon60.6%660
Hussam Aldeen Alzateemeh58.8%3418
Cassi J Galt58.6%1620
Hana Lee57.8%1547
Christopher George Fees56.9%16017
Kevin P Mahne55.6%180
Frank T Glenn III55.4%16612
Jacob Daniel Underbakke51.6%9112
Lisa S Yung50.0%40
Samantha Pearl Pelow50.0%40
Elizabeth J Slowik46.0%8719
Navdeep S Mand44.4%90
Gabriel P Anfinrud42.0%16224
Tischi Panicker36.4%220
Aaron L Troost28.6%140
Basil T Jos20.0%50
Richard J Schuler16.7%180
Oluwabusayo Adebanjo Aworunse13.3%1529

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 3662?

61.1% over the last five years, across 6,122 resolved applications.

Which examiners in Art Unit 3662 have the highest allowance rates?

Among examiners with at least 30 resolved applications: John B Sotomayor (93.9%, 98 resolved), Dao Linda Phan (90.7%, 322 resolved), Mahmoud S Ismail (89.2%, 804 resolved).

Which examiners in Art Unit 3662 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Gabriel P Anfinrud (42.0%, 162 resolved), Elizabeth J Slowik (46.0%, 87 resolved), Jacob Daniel Underbakke (51.6%, 91 resolved).

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