Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2444: Examiners and Allowance Rates

37 examiners • 15 with pending office actions • Networking & Security (Tech Center 2400)

Art unit baseline (last 5 years, 3,280 dispositions): 74% allowance rate • 4.6 office actions per allowance • 875 days median pendency
ExaminerAllowance rateResolved casesPending apps
Dipendra Acharya100.0%10
Lan Dai T Truong98.3%2325
Richard G Keehn94.0%28510
Ranodhi N Serrao87.1%54113
Raqiul A Choudhury86.7%26315
Thu Ha T Nguyen86.2%2890
Mohamed Ibrahim85.8%65614
James N Fiorillo85.7%46315
Djenane M Bayard84.2%78620
Thanh T Nguyen84.1%630
Kamal M Hossain82.6%17223
Fadi Haj Said79.2%22612
Scott B Christensen77.9%1,00827
Peling Andrew Shaw77.9%3570
Christopher Palaca Cadorna77.3%4426
Ninos Donabed75.5%66018
Umar Cheema66.3%1900
Paul H Kang64.4%450
Yemane Mesfin64.0%1250
Farrukh Hussain62.0%1660
Muktesh G Gupta60.0%800
Kristie D Shingles57.9%380
Zonghua A Du57.8%4515
Greg C Bengzon57.3%49628
Thomas W Richardson56.5%2000
Joiya M Cloud54.6%1190
Lam T Do54.2%1310
Sean D Concannon42.3%520
Boris Gorney41.9%1050
Carlos Rafael Perez Toro41.4%580
John A Follansbee33.3%1512
Adam A Cooney32.1%280
Maceeh Anwari23.3%430
Shirley X Zhang21.8%550
Peter-Anthon Pappas0.0%750
William C Vaughn Jr.0.0%30
Muhammad M Sarker0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2444?

73.5% over the last five years, across 3,280 resolved applications.

Which examiners in Art Unit 2444 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Lan Dai T Truong (98.3%, 232 resolved), Richard G Keehn (94.0%, 285 resolved), Ranodhi N Serrao (87.1%, 541 resolved).

Which examiners in Art Unit 2444 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Peter-Anthon Pappas (0.0%, 75 resolved), Shirley X Zhang (21.8%, 55 resolved), Maceeh Anwari (23.3%, 43 resolved).

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