Prosecution Insights
Last updated: October 14, 2026

USPTO Art Unit 2629: Examiners and Allowance Rates

174 examiners • 14 with pending office actions • Communications (Tech Center 2600)

Art unit baseline (last 5 years, 2,320 dispositions): 93% allowance rate • 2.8 office actions per allowance • 702 days median pendency
ExaminerAllowance rateResolved casesPending apps
Elijah M Sheets100.0%20
Benjamin C Lee100.0%20
Xiao Min Wu100.0%10
Anthony Michael Haughton100.0%10
Dong Hui Liang99.2%1180
Chun-Nan Lin98.6%21321
Muhammad N Edun97.2%2543
Nan-Ying Yang95.8%12012
Xuemei Zheng94.9%23512
Ricardo Osorio92.8%2370
Krishna P. Neupane92.1%1141
Joe H Cheng91.7%120
Nitin Patel90.8%1410
David Lee Lewis85.2%1080
Prabodh M Dharia84.9%6114
Jennifer T Nguyen84.8%4147
Kimnhung T Nguyen84.8%2560
Abbas I Abdulselam84.3%2670
My Chau T Tran83.6%1770
Nathaniel P Brittingham83.5%1097
Vijay Shankar82.9%2460
Emily J Frank82.5%10321
Jonathan R King81.2%160
Bao Quan T Ho80.0%100
Vincent E Kovalick78.6%560
Mansour M Said78.4%1670
Calvin Ma76.6%29113
Tom V Sheng75.9%1870
Sarvesh J Nadkarni75.9%5812
Kevin M Nguyen75.8%2930
Srilakshmi K Kumar75.4%1990
Regina Liang73.9%1990
Hong Zhou73.5%3104
Michael Pervan72.3%2923
Henry N Tran71.7%920
Duc Q Dinh71.3%1880
Stephen G Sherman69.3%3390
Yuk Chow69.2%1170
Olga Aronovich68.3%1392
Ishara T.S. Perumpulliarachch66.7%30
Lin Li65.5%1160
Premal R Patel65.2%1640
Koosha Sharifi-Tafreshi64.5%1520
Mihir K Rayan63.6%110
Kelly B Hegarty63.3%600
Leonid Shapiro63.2%3700
Sosina Abebe61.4%700
Steven E Holton60.9%1280
Sepideh Ghafari60.7%280
Troy S Dalrymple60.6%330
Kenneth B Lee Jr.59.7%1810
Lunyi Lao58.6%290
Dmitriy Bolotin58.5%2050
Saifeldin E Elnafia58.5%820
Randal L Willis58.2%980
Carolyn R Edwards57.1%980
Afroza Y Chowdhury55.2%1450
Shaheda A Abdin54.8%1150
Alexander S Beck54.0%1000
Charles V Hicks53.6%1250
Matthew Yeung53.2%940
Stacy Khoo52.2%230
Md Saiful A Siddiqui52.0%250
Rodney Amadiz51.1%450
Insa Sadio51.1%920
Liliana P Cerullo51.0%1430
Dorothy H Harris50.3%1770
Aaron M Guertin50.0%800
Sahlu Okebato50.0%800
Hang Lin50.0%120
Amen W Bogale50.0%40
Jimmy H Nguyen49.6%1410
Ilana L Spar49.6%1290
Jeffrey S Steinberg49.5%1070
Pegeman Karimi49.2%1180
Keith L Crawley48.9%900
Michael Eurice48.8%410
Joseph G Rodriguez48.6%700
Robin J Mishler48.5%1030
Jennifer L Zubajlo48.2%1140
David J Lee47.6%210
Jeffrey Alan Parker47.0%830
Patrick Moon46.1%1410
Tony O Davis45.7%1380
Robert E Carter III45.5%880
Tsegaye H Seyoum45.5%660
Robert R Rainey44.8%670
Joseph Pena44.4%90
Gene W Lee44.3%970
Patrick Marinelli44.3%1310
Sanjiv D Patel44.2%430
Ram A Mistry44.1%1020
Viet David Pham43.9%1320
Jarurat Suteerawongsa43.9%820
Andrew B Schnirel43.7%870
Robert M Stone43.3%970
Cory A Almeida43.1%1300
Ieesha Gillis42.9%140
Towfiq Elahi42.3%260
Ryan A Lubit42.1%570
Roy P Rabindranath42.1%380
Jason M Mandeville41.9%1480
Priyank J Shah41.4%870
Gregory J Tryder40.7%1080
Charles H Zheng40.0%150
Nelson C Lam39.8%980
Allison Walthall Johnson39.8%1860
Kwang-Su Yang39.0%1180
Kenneth Bukowski38.6%1010
Jonathan A Boyd37.9%1160
Long D Pham37.6%1330
Benyam Ketema37.5%720
Adakou Foli37.5%160
Navin B Lingaraju36.8%190
Sanghyuk Park36.5%850
Nelson D Runkle III36.4%220
Jeffrey S Pelligrino36.0%250
Matthew Y Sim36.0%1140
Adam J Snyder35.8%1650
Vinh Tang Lam35.4%1270
Christopher D Thompson34.4%320
Alecia Diane English33.3%360
James S Nokham33.3%180
Christopher E Leiby32.6%1810
Andre L Matthews32.4%710
Kirk W Hermann31.2%160
Antonio J Xavier31.2%930
John Kirkpatrick31.1%450
Mark W Regn30.8%260
Tammy Goddard30.7%1140
Stuart S Mccommas29.8%570
Ke Xiao28.8%1250
Grant Sitta28.8%1390
Stephen A Bray27.7%650
Jonathan M Blancha26.4%910
Amit Chatly26.1%230
Aaron Midkiff25.8%660
Jonathan R Horner24.5%1060
Shawna T Stepp Jones23.1%130
Jose R Soto Lopez23.1%130
Daniel J Bedell22.8%1140
Matthew A Fry21.1%760
John J Morris20.8%240
Andrew G Yeretsky20.0%100
William Boddie18.5%920
Waseem Moorad18.1%1160
Jesus J Hernandez17.4%230
Nguyen H Truong15.0%200
Bassam A Noaman13.3%150
Dennis P Joseph11.5%1040
Alonso Tapia11.5%260
Tony N Ngo11.1%180
Karin A Kiyabu8.3%120
Amr A Awad7.1%140
David Tung5.9%510
Alexander Eisen5.9%170
Jeffrey J Piziali1.0%1010
Bipin H Shalwala0.0%280
Sumati Lefkowitz0.0%180
Quan Zhen Wang0.0%110
James M Holland0.0%50
Amare Mengistu0.0%50
Samuel S Melaku0.0%50
Pakee Fang0.0%40
Chanh Duy Nguyen0.0%20
Phillip S Lee0.0%20
Sejoon Ahn0.0%10
Benjamin J Smith0.0%10
Jairo G Vargas0.0%10
Robert J Kline0.0%10
Solomon A Berhane0.0%10
Lenworth A Woolcock0.0%10
Annie Moy0.0%10
Jacob F Betit0.0%10

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2629?

93.3% over the last five years, across 2,320 resolved applications.

Which examiners in Art Unit 2629 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Dong Hui Liang (99.2%, 118 resolved), Chun-Nan Lin (98.6%, 213 resolved), Muhammad N Edun (97.2%, 254 resolved).

Which examiners in Art Unit 2629 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Jeffrey J Piziali (1.0%, 101 resolved), David Tung (5.9%, 51 resolved), Dennis P Joseph (11.5%, 104 resolved).

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