Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2857: Examiners and Allowance Rates

123 examiners • 58 with pending office actions • Semiconductors, Circuits & Optics (Tech Center 2800)

Art unit baseline (last 5 years, 8,016 dispositions): 72% allowance rate • 3.2 office actions per allowance • 960 days median pendency
ExaminerAllowance rateResolved casesPending apps
Christian Thomas Bryant100.0%1118
Michael J Singletary100.0%820
Oluseye Iwarere100.0%50
Sharah Zaab100.0%424
Yossef Korang-Beheshti100.0%430
Joshua L Forristall100.0%427
Brandon George Macgregor100.0%30
Nyla Emani Ann Gavia100.0%223
An H Do100.0%20
Christopher P Mcandrew100.0%10
Jordan L Jackson100.0%140
Corey M Bailey100.0%10
Thomas K Pham100.0%10
Julian D Huffman100.0%10
Tung X Nguyen100.0%10
Toni Dian Sauncy100.0%121
Julia Grace Fitzpatrick100.0%10
Hua Lu100.0%10
Krystine E Breier100.0%10
Logan Douglas Coons100.0%10
Ryan James Stear100.0%13
Phong H Dang100.0%10
Alvaro E Fortich100.0%10
Patricia Kathryn Wright100.0%10
Catherine T Rastovski95.0%204
Bryan Bui93.1%3750
Yoshihisa Ishizuka92.3%1319
Hien Dieu Thi Khuu91.7%960
John H Le90.4%64824
Sujoy K Kundu90.0%2300
Edward Raymond89.8%4880
Robert P Alejnikov Jr.89.4%4713
Manuel A Rivera Vargas88.5%26139
Hal D Wachsman87.2%3280
Tung S Lau87.0%51638
Carol S W Tsai86.8%5700
Dacthang P Ngo86.2%580
Phuong Huynh85.7%79219
Paul D Lee85.5%28318
Aditya S Bhat85.1%32822
Jeffrey P Aiello84.9%2721
Toan M Le84.5%4010
Elias Desta84.0%1,08720
Ricky Go83.3%45617
Edward R Cosimano83.3%1080
Hien Xuan Vo83.3%900
Mohammad K Islam82.9%24063
Lynda Dinh82.4%13122
Mohamed Charioui81.3%72614
Manuel L Barbee81.1%49128
Thomas M Hammond III80.0%50
Lal C Mang80.0%535
Mischita L Henson78.7%3906
Felix E Suarez78.3%2580
Stephen J Cherry78.1%1140
Douglas Kay77.9%19518
Christine Y Liao76.8%990
Raymond Londale Nimox76.3%19033
Yaritza H Perez Bermudez75.9%14520
Jeremy A Delozier75.1%2810
Brian Butler Geiss75.0%413
Rhadames J Alonzo Miller75.0%40
Brent Alan Fairbanks73.9%460
Regis J Betsch73.9%1570
Kaleria Knox73.0%42922
Xiuqin Sun72.9%24030
Michael P Nghiem72.5%37145
John Chunyang Kuan72.4%56527
Mary Catherine O Malley71.7%920
Lina M Cordero71.7%43419
Eyob Hagos71.4%15425
Ibrahim Nagi Shohatee71.4%714
Lyudmila Zaykova-Feldman70.0%10012
Eman A Alkafawi70.0%100
Haihui Zhang69.2%130
Janet L Suglo69.1%1750
Michael J Dalbo67.2%1860
Arleen M Vazquez66.7%150
Cynthia L Davis66.7%319
Stephanie E Bloss66.7%30
Denise R Karavias66.4%1078
Lisa E Peters64.7%170
Stephanie Chang63.6%110
Jonathan Charles Teixeira Moffat63.2%680
Ethan Wesley Edwards62.5%2427
Carter W Ferrell60.0%58
Lynne D Anderson58.8%510
Timothy Hwang58.5%650
Shelby Auburn Turner57.7%2611
Mark I Crohn56.0%1680
Alexander Satanovsky52.5%26535
Kyle Robert Quigley50.9%15944
Leonard S Liang50.4%12527
Matthew Walter Baca50.0%221
Sangkyung Lee50.0%20
Sharad Timilsina50.0%220
Haidong Zhang48.0%500
Aeysha N Sultana47.8%230
Brandon J Becker45.5%10129
Hyun D Park44.2%28345
Ivan I Rabovianski42.9%140
Ruihua Zhang33.3%30
Ronald L Biegel30.8%130
Jeffrey R West25.4%1380
Joseph Jeremy Yamamoto25.0%40
John E Breene16.7%60
Andrew M Schechter8.6%2210
Robert M Dewitty7.9%380
Eliseo Ramos Feliciano0.0%70
Terence E Stifter Jr.0.0%40
Benjamin A Martin0.0%40
Liam R Casey0.0%30
Jonathan Ballerano0.0%20
Daniel Kessie0.0%20
Jacob F Betit0.0%10
Fred L Johnson III0.0%10
Mostofa Ahmed Hisham0.0%119
Rodger Stewart Mensing—015
Emma Lynne Alexander—011
Saeede Nafooshe—010
Hua Mei Harry Chen—05
Moin Uddin Ahmed—04
Janelle Amber Holmes—03

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2857?

72.0% over the last five years, across 8,016 resolved applications.

Which examiners in Art Unit 2857 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Bryan Bui (93.1%, 375 resolved), Hien Dieu Thi Khuu (91.7%, 96 resolved), John H Le (90.4%, 648 resolved).

Which examiners in Art Unit 2857 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Robert M Dewitty (7.9%, 38 resolved), Andrew M Schechter (8.6%, 221 resolved), Jeffrey R West (25.4%, 138 resolved).

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