Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 3618: Examiners and Allowance Rates

50 examiners • 15 with pending office actions • Transportation, E-Commerce & Mechanical Systems (Tech Center 3600)

Art unit baseline (last 5 years, 4,904 dispositions): 62% allowance rate
ExaminerAllowance rateResolved casesPending apps
Hosam Shabara100.0%1817
Burton S Mullins100.0%10
Benjamin F Fiorello100.0%10
Kavel Singh100.0%10
Prasad V Gokhale100.0%10
Ruben Picon-Feliciano100.0%10
Derek Douglas Knight100.0%10
Ha Dinh Ho98.2%1700
William J Cook94.8%11618
William C Joyce92.9%25420
Terence Boes92.9%1546
Randell J Krug91.0%1114
Minnah L Seoh90.9%221
Victor L Macarthur89.5%16225
Jr, Bobby Rushing87.6%14521
Gregory Robert Weber87.4%1195
Gregory T Prather86.9%13712
Zakaria Elahmadi85.7%21024
James J Triggs83.9%8960
Andrew N Khouzam83.3%60
Nicole T Verley83.0%1350
Nicholas R Kandas81.8%550
Thomas S Fix81.5%11926
Ian Bryce Shelton79.5%1320
Brian L Cassidy76.9%2730
Hilary Lynn Johns76.7%3950
Joseph Henry Brown76.4%11030
Brian L Swenson75.9%6680
James M Dolak74.9%4740
Hau Van Phan73.9%1,0470
Michael Thomas Walsh73.1%1600
John Daniel Walters72.7%8470
Erez Gurari72.4%6380
Jeffrey J Restifo72.1%7460
Brodie J Follman69.5%3050
Bryan A Evans68.9%7450
John Olszewski68.4%2530
Charles A Fox66.7%30
Jacob B Meyer66.3%5460
Steve M Clemmons65.4%4940
Bridget D Avery64.6%3530
Emma K Frick63.1%3710
Vaughn Coolman62.0%5240
Cynthia Francisca Collado60.9%460
Al-Birr Rahman Chowdhury60.0%514
Katy Meyer Ebner54.2%5110
Frank Bennett Vanaman52.6%7010
Chiedu A Chibogu40.8%490
James A Shriver II3.7%270
Duhyung Song—07

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 3618?

61.7% over the last five years, across 4,904 resolved applications.

Which examiners in Art Unit 3618 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Ha Dinh Ho (98.2%, 170 resolved), William J Cook (94.8%, 116 resolved), William C Joyce (92.9%, 254 resolved).

Which examiners in Art Unit 3618 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Chiedu A Chibogu (40.8%, 49 resolved), Frank Bennett Vanaman (52.6%, 701 resolved), Katy Meyer Ebner (54.2%, 511 resolved).

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