Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2659: Examiners and Allowance Rates

30 examiners • 15 with pending office actions • Communications (Tech Center 2600)

Art unit baseline (last 5 years, 2,912 dispositions): 62% allowance rate • 4.2 office actions per allowance • 1,039 days median pendency
ExaminerAllowance rateResolved casesPending apps
Mark R Hennings100.0%10
Edgar X Guerra-Erazo90.5%4020
Neeraj Sharma86.7%45916
Jialong He85.1%77416
Huyen X Vo84.2%4110
Qi Han81.8%4120
Seong-Ah A Shin80.1%40721
Abdelali Serrou79.7%51712
Paras D Shah77.8%3920
Fariba Sirjani76.3%55817
Feng-Tzer Tzeng76.2%4330
Shreyans A Patel75.8%3325
Angela A Armstrong75.4%49125
Linda Wong75.0%80
Neel Piyushkumar Karelia75.0%40
Keisha Y Castillo-Torres74.4%12121
Sean Thomas Smith73.9%2316
Anne L Thomas-Homescu72.7%1720
Matthew H Baker72.5%2870
Yi Sheng Wang70.1%970
Nicole A K Schmieder68.5%17814
Jonathan C Kim67.2%1830
Kristen Michelle Masters65.5%5518
David M Kovacek64.0%1360
Daniel Wonsuk Chung61.4%5722
Jie Shan59.1%220
Cody Douglas Hutcheson58.8%3422
Fouzia Hye Solaiman46.2%130
Pierre Louis Desir37.5%725
Yuval Haim Levental—013

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2659?

62.4% over the last five years, across 2,912 resolved applications.

Which examiners in Art Unit 2659 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Edgar X Guerra-Erazo (90.5%, 402 resolved), Neeraj Sharma (86.7%, 459 resolved), Jialong He (85.1%, 774 resolved).

Which examiners in Art Unit 2659 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Pierre Louis Desir (37.5%, 72 resolved), Cody Douglas Hutcheson (58.8%, 34 resolved), Daniel Wonsuk Chung (61.4%, 57 resolved).

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