Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2451: Examiners and Allowance Rates

39 examiners • 14 with pending office actions • Networking & Security (Tech Center 2400)

Art unit baseline (last 5 years, 3,298 dispositions): 74% allowance rate • 3.6 office actions per allowance • 770 days median pendency
ExaminerAllowance rateResolved casesPending apps
Hiteshkumar R Patel100.0%10
Akshay Doshi100.0%10
William C Vaughn Jr.100.0%10
Parthkumar Patel100.0%10
Phuoc H Nguyen94.1%27214
Zarni Maung91.4%5260
Jimmy H Tran90.6%27824
Krisna Lim89.9%1680
Hassan Abdur-Rahman Khan84.4%1475
Anthony Mejia83.9%73512
Soe Min Hlaing82.7%3756
Steven C Nguyen82.5%1437
John B Walsh82.4%81917
Glenford J Madamba81.5%54514
Dixon F Dabipi78.5%13010
Abderrahmen Chouat76.5%24313
Alan S Chou75.3%64912
Imad Hussain74.2%2480
Maceeh Anwari72.4%290
Weiwei Ye Stiltner72.2%2450
Khanh Q Dinh70.8%1610
Backhean Tiv70.8%4760
Caroline H Jahnige70.0%3470
Saket K Daftuar67.4%3530
Nghi V Tran65.6%640
Stephen J Houlihan58.5%1300
Daeoo Lee57.1%140
Madhu Woolcock56.5%2947
Dhairya A Patel53.1%2410
Sheraz A Khan50.0%20
Christopher L Parry45.6%6810
Karen C Tang44.2%520
Antony K Clayborn30.0%100
Kamal B Divecha26.9%1080
Joseph L Greene25.0%240
Matthew S Lindsey14.3%280
John A Follansbee0.0%270
Farbod Nooraninajafi0.0%30
Jonathan Eric Estrada—06

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2451?

74.1% over the last five years, across 3,298 resolved applications.

Which examiners in Art Unit 2451 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Phuoc H Nguyen (94.1%, 272 resolved), Zarni Maung (91.4%, 526 resolved), Jimmy H Tran (90.6%, 278 resolved).

Which examiners in Art Unit 2451 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Kamal B Divecha (26.9%, 108 resolved), Karen C Tang (44.2%, 52 resolved), Christopher L Parry (45.6%, 68 resolved).

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