Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2858: Examiners and Allowance Rates

107 examiners • 50 with pending office actions • Semiconductors, Circuits & Optics (Tech Center 2800)

Art unit baseline (last 5 years, 11,665 dispositions): 84% allowance rate • 2.8 office actions per allowance • 795 days median pendency
ExaminerAllowance rateResolved casesPending apps
Stephen G Armstrong100.0%30
Gregory H Curran100.0%10
Jennifer Hawkins Gay100.0%10
Richard J Hong100.0%10
Rodney T Frank100.0%10
Eugene Yun100.0%10
Boniface N Nganga100.0%10
Antony M Paul100.0%10
Trung Q Nguyen96.0%35324
Dominic E Hawkins94.3%26514
Vincent Q Nguyen94.0%3500
Alvaro E Fortich94.0%21616
Giovanni Astacio-Oquendo93.9%2319
Raul J Rios Russo93.7%28420
Neel D Shah92.6%24411
David B Frederiksen92.3%19518
Robert P Alejnikov Jr.91.5%710
Brij B Shrivastav91.2%1020
Thang Xuan Le90.9%33117
Tung X Nguyen90.4%35511
Zannatul Ferdous88.7%25620
Vinh P Nguyen88.5%55714
Temilade S Rhodes-Vivour88.3%34215
Sean M Curtis88.2%4570
Farhana Akhter Hoque88.2%31310
Dixomara Vargas Montalvo88.0%1170
Brent J Andrews87.9%997
Jermele M Hollington87.9%77413
Bot L Ledynh87.7%4960
Akm Zakaria87.6%35440
Courtney G Mcdonnough87.6%19316
Reena Aurora87.4%1,16322
Taqi R Nasir87.4%53321
Hoai An D Nguyen87.3%34621
Richard Isla86.7%24123
Tiffany A Fetzner86.5%1260
Demetrius R Pretlow86.4%71125
Rahul Maini86.2%1238
Christopher P Mcandrew85.9%99620
Louis M Arana85.9%1770
Edward H Tso85.7%1540
Haidong Zhang85.2%43113
Douglas X Rodriguez84.9%3440
Jay M Patidar84.7%8610
Lee E Rodak84.5%711
Feba Pothen84.4%26317
Amy He84.3%2176
Alesa M Allgood84.1%27613
Suresh Ks Rajaputra83.8%48915
M Baye Diao83.8%2160
Son T Le83.0%1122
Adam S Clarke82.6%20113
Carl F.R. Tchatchouang81.7%16423
Arleen M Vazquez81.7%1690
Yalkew Fantu81.6%1520
Emily Y Chan81.6%1410
Eman A Alkafawi81.2%160
Paresh H Patel81.2%36224
Dilara Sultana80.7%14033
Jeremiah John Barron79.4%3415
Joshua Benitez Rosario78.4%1620
Roberto Velez78.3%15721
Minh Nhut Tang77.8%1350
Nasima Monsur77.7%24735
Jeff William Natalini77.7%1570
Kenneth Whittington77.3%1630
Steven Lee Yeninas77.0%20921
Rishi R Patel73.7%1924
Byung Ro Lee73.3%12026
Ramy O Ramadan73.0%1630
Hoang X Nguyen72.6%620
Lamarr A Brown71.8%1560
Daniel R Miller71.8%11720
Aaron C Piggush71.0%930
Khristopher J Yodichkas70.9%790
Timothy J Dole69.7%890
Joseph A Nyamogo69.2%10721
Arun C Williams68.7%2330
Samuel Berhanu68.6%1750
Benjamin M Baldridge68.5%1240
Thomas F Valone67.6%2870
Steve T Chung65.0%200
Martin Walter Braunlich64.6%13023
Alexis Boateng Pacheco64.2%1200
James Gerald Split64.1%9214
Hugo Ivan Navarro62.5%1631
Ahmed H Omar60.0%1300
Sangkyung Lee59.0%15631
Kathryn Ran Chang55.6%90
Richard V Muralidar55.3%940
Huy Q Phan55.0%202
Alexander J Nemtzow52.8%360
Johali Alejandra Torres Ruiz50.0%780
John X Zhu50.0%100
Nathaniel R Pelton50.0%100
Renata D Mccloud42.9%70
David M Schindler39.8%58542
Manuel J Hernandez38.8%850
Judy Nguyen38.5%130
Dustin R Dickinson37.5%80
Vincent P Spinella Mamo30.0%100
Robert J Grant25.0%120
Melissa J Koval7.1%140
Patrick J Assouad3.9%510
Ha Tran Nguyen0.0%20
Julio C Diaz Perez0.0%20
Osamah Murshed—016

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2858?

83.6% over the last five years, across 11,665 resolved applications.

Which examiners in Art Unit 2858 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Trung Q Nguyen (96.0%, 353 resolved), Dominic E Hawkins (94.3%, 265 resolved), Vincent Q Nguyen (94.0%, 350 resolved).

Which examiners in Art Unit 2858 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Patrick J Assouad (3.9%, 51 resolved), Manuel J Hernandez (38.8%, 85 resolved), David M Schindler (39.8%, 585 resolved).

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