Prosecution Insights
Last updated: October 08, 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, 7,938 dispositions): 72% allowance rate • 3.2 office actions per allowance • 960 days median pendency
ExaminerAllowance rateResolved casesPending apps
Christian Thomas Bryant100.0%920
Michael J Singletary100.0%821
Oluseye Iwarere100.0%50
Sharah Zaab100.0%425
Brandon George Macgregor100.0%30
Yossef Korang-Beheshti100.0%325
Joshua L Forristall100.0%331
Nyla Emani Ann Gavia100.0%224
Christopher P Mcandrew100.0%10
Jordan L Jackson100.0%139
Corey M Bailey100.0%10
Thomas K Pham100.0%10
Brian Butler Geiss100.0%113
Julian D Huffman100.0%10
Tung X Nguyen100.0%10
Toni Dian Sauncy100.0%122
Julia Grace Fitzpatrick100.0%10
Hua Lu100.0%10
An H Do100.0%10
Krystine E Breier100.0%10
Logan Douglas Coons100.0%10
Ryan James Stear100.0%16
Phong H Dang100.0%10
Alvaro E Fortich100.0%10
Patricia Kathryn Wright100.0%10
Catherine T Rastovski95.0%205
Bryan Bui93.1%3750
Yoshihisa Ishizuka92.3%1321
Hien Dieu Thi Khuu91.7%960
John H Le90.7%64333
Sujoy K Kundu90.0%2300
Edward Raymond89.8%4880
Robert P Alejnikov Jr.89.4%4712
Manuel A Rivera Vargas88.8%26035
Hal D Wachsman87.2%3280
Tung S Lau87.0%50641
Carol S W Tsai86.8%5700
Dacthang P Ngo86.2%580
Phuong Huynh85.6%78321
Paul D Lee85.3%27920
Aditya S Bhat85.1%32819
Jeffrey P Aiello84.9%2721
Toan M Le84.5%4010
Elias Desta84.0%1,08425
Edward R Cosimano83.3%1080
Hien Xuan Vo83.3%900
Ricky Go83.1%45120
Mohammad K Islam83.0%23564
Lynda Dinh82.4%13122
Mohamed Charioui81.2%72413
Manuel L Barbee81.1%48834
Thomas M Hammond III80.0%50
Lal C Mang80.0%539
Mischita L Henson78.7%3907
Felix E Suarez78.3%2580
Stephen J Cherry78.1%1140
Douglas Kay77.6%19223
Raymond Londale Nimox77.5%18739
Christine Y Liao76.8%990
Yaritza H Perez Bermudez76.4%14419
Jeremy A Delozier75.1%2810
Stephanie E Bloss75.0%40
Rhadames J Alonzo Miller75.0%40
Carter W Ferrell75.0%47
Brent Alan Fairbanks73.9%460
Regis J Betsch73.9%1570
Xiuqin Sun72.9%24032
Kaleria Knox72.8%42717
Michael P Nghiem72.7%37042
John Chunyang Kuan72.3%56323
Mary Catherine O Malley71.7%920
Lina M Cordero71.6%43324
Ibrahim Nagi Shohatee71.4%717
Eyob Hagos71.2%15325
Lyudmila Zaykova-Feldman70.0%10011
Eman A Alkafawi70.0%100
Haihui Zhang69.2%130
Janet L Suglo69.1%1750
Michael J Dalbo67.2%1860
Arleen M Vazquez66.7%150
Denise R Karavias66.4%10711
Ethan Wesley Edwards65.2%2325
Lisa E Peters64.7%170
Stephanie Chang63.6%110
Jonathan Charles Teixeira Moffat63.2%680
Lynne D Anderson58.8%510
Timothy Hwang58.5%650
Shelby Auburn Turner57.7%2614
Mark I Crohn56.0%1680
Alexander Satanovsky51.9%26236
Kyle Robert Quigley50.9%15939
Leonard S Liang50.0%12425
Cynthia L Davis50.0%219
Sangkyung Lee50.0%20
Sharad Timilsina50.0%217
Haidong Zhang48.0%500
Aeysha N Sultana47.8%230
Brandon J Becker45.5%10131
Hyun D Park44.0%28248
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%118
Matthew Walter Baca—019
Rodger Stewart Mensing—013
Emma Lynne Alexander—011
Saeede Nafooshe—09
Janelle Amber Holmes—09
Hua Mei Harry Chen—05
Moin Uddin Ahmed—02

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2857?

72.0% over the last five years, across 7,938 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 (90.7%, 643 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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