Prosecution Insights
Last updated: October 08, 2026

USPTO Art Unit 2691: Examiners and Allowance Rates

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

Art unit baseline (last 5 years, 5,106 dispositions): 73% allowance rate
ExaminerAllowance rateResolved casesPending apps
Amal S Zenati100.0%100
David L Ton100.0%20
Tuan A Tran100.0%10
Amandeep Singh Saini100.0%10
Derik John Trumble100.0%10
Emily Rose Hauk100.0%10
Binh Kien Tieu100.0%10
Andargie M Aychillhum100.0%10
Sidney Leigh Molnar100.0%10
Melur Ramakrishnaiah98.0%990
Sean H Nguyen96.0%17317
Kile O Blair95.6%15814
Suhan Ni95.1%20423
Yogeshkumar G Patel94.8%19215
Thuy N Pardo94.6%2790
Yosef K Laekemariam94.4%24918
Quoc Duc Tran92.8%16614
Sunita Joshi92.5%25522
Qin Zhu92.2%20524
Paul W Huber90.3%25715
Lunsee Lao89.3%14916
Brent D Castiaux87.9%2470
Assad Mohammed87.0%17713
Pegeman Karimi86.5%5940
Roy P Rabindranath82.4%4380
Phung Hoang Joseph Nguyen80.3%14219
Saad Ahmed Syed80.0%50
Long D Pham79.9%5320
Ngan T Pham Lu78.9%760
Kwang-Su Yang76.6%5000
Carissa Anne Jones76.3%3814
Michael Pervan73.8%800
Nguyen H Truong71.6%1830
Stephen G Sherman71.3%1150
Adam J Snyder71.3%5290
Karin A Kiyabu71.1%380
Sanghyuk Park69.5%4790
Liliana P Cerullo67.6%680
Yuzhen Shen65.5%5240
Chimezie Ezeriwe Bekee65.4%2622
Jason M Mandeville65.0%200
Sepehr Azari61.7%1150
Jonathan M Blancha61.2%4540
Ram A Mistry57.2%4390
Matthew Y Sim56.8%440
Allison Walthall Johnson53.4%1030
Duc Minh Nguyen53.3%300
Andre L Matthews51.9%270
Dennis P Joseph51.6%310
Walter F Briney III50.0%20
Randal L Willis48.6%350
James S Nokham46.7%300
Robert M Stone45.9%370
Waseem Moorad44.1%340
Roberto W Flores42.9%70
Navin B Lingaraju42.5%1270
Daniel H Duong42.4%590
Tsegaye H Seyoum42.1%570
John Kirkpatrick41.9%1050
Jonathan G Cooper40.9%220
Damon Treitler33.3%60
Aaron Midkiff31.8%220
Jonathan A Boyd31.2%320
Stephen A Bray30.8%130
Kenneth Bukowski27.0%370
Amr A Awad7.7%130
Chanh Duy Nguyen0.0%340
John R Schnurr0.0%10
Viet Nguyen—02

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2691?

72.6% over the last five years, across 5,106 resolved applications.

Which examiners in Art Unit 2691 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Melur Ramakrishnaiah (98.0%, 99 resolved), Sean H Nguyen (96.0%, 173 resolved), Kile O Blair (95.6%, 158 resolved).

Which examiners in Art Unit 2691 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Chanh Duy Nguyen (0.0%, 34 resolved), Kenneth Bukowski (27.0%, 37 resolved), Jonathan A Boyd (31.2%, 32 resolved).

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