Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 3798: Examiners and Allowance Rates

45 examiners • 26 with pending office actions • Medical Devices & Mechanical Engineering (Tech Center 3700)

Art unit baseline (last 5 years, 3,748 dispositions): 73% allowance rate • 5.6 office actions per allowance • 1,244 days median pendency
ExaminerAllowance rateResolved casesPending apps
Angela Marie Hoffa100.0%30
Gerald Johnson100.0%20
Michael Hyun Hong100.0%10
Long T Nguyen100.0%10
George Sun100.0%10
Henry Choe100.0%10
Dixomara Vargas Montalvo94.0%26717
Sanjay Cattungal92.9%18320
Joel Lamprecht91.7%16913
Patricia Joo Young Park90.7%11823
Joel F Brutus89.2%2680
Nyrobi I Celestine86.1%16669
Alexei Bykhovski85.7%23019
Amelie R Davis84.8%13827
Amal Aly Farag83.5%11515
Sean D Mattson82.6%13825
Bo Joseph Peng82.1%1560
Colin T Sakamoto81.7%10913
Yi-Shan Yang78.7%15518
Sean A Frith74.9%16721
Milton Larson Truong74.1%580
John Denny Li74.0%10436
Ashish Shirish Jasani73.6%14019
Fikirte T Ashine71.4%210
Katherine L Fernandez69.3%15335
Patrick M Mehl69.0%870
Hien Ngoc Nguyen68.3%1390
Gabriel Victor Popescu68.1%720
Keith Michael Raymond63.0%4620
Michael Yiming Fang61.8%6833
Pascal M Bui Pho60.8%5122
Amy Jeanette Shafqat55.7%7019
Andrew W Begeman53.5%9931
Adil Partap S Virk53.3%12024
Johnathan A Maynard51.7%890
Michael S Kellogg47.3%5512
Nicholas A Robinson46.8%10935
Adam D. Kolkin43.1%5819
Rajeev P Siripurapu41.8%670
Taylor M Deutsch32.1%5324
Neshat Baset26.5%490
Lei Zhang13.3%1540
Niketa I Patel0.0%10
Michael James Carey0.0%10
Erin Cao0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 3798?

72.8% over the last five years, across 3,748 resolved applications.

Which examiners in Art Unit 3798 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Dixomara Vargas Montalvo (94.0%, 267 resolved), Sanjay Cattungal (92.9%, 183 resolved), Joel Lamprecht (91.7%, 169 resolved).

Which examiners in Art Unit 3798 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Neshat Baset (26.5%, 49 resolved), Taylor M Deutsch (32.1%, 53 resolved), Rajeev P Siripurapu (41.8%, 67 resolved).

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