Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 2643: Examiners and Allowance Rates

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

Art unit baseline (last 5 years, 4,254 dispositions): 75% allowance rate • 3.9 office actions per allowance • 1,233 days median pendency
ExaminerAllowance rateResolved casesPending apps
Zhiren Qin100.0%10
Hirdepal Singh100.0%10
David Q Nguyen91.7%72713
Khalid W Shaheed90.2%46821
Jean Alland Gelin89.5%1,03424
Pablo N Tran88.4%27515
Nathan Scott Taylor87.9%80818
Ki Ha Nam87.5%80
Meless Nmn Zewdu87.4%6530
Dung Hong87.3%72517
Khawar Iqbal84.9%32526
William Nealon84.8%5730
Marisol Figueroa84.6%59019
Michael Nguyen80.5%410
San A Htun80.4%67727
Farideh Madani80.0%24526
Alexander J. Yi79.1%22013
Jean Chang78.9%1520
Erica Navar76.7%1590
Rui Meng Hu76.4%22914
Magdi Elhag74.7%870
Justin Arthur Barry74.1%2723
Stephen M D Agosta73.8%3020
Qun Shen72.4%2830
Opiribo Georgewill70.5%1660
Tabla K Glomah40.6%320
Jinsong Hu36.7%304

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 2643?

74.9% over the last five years, across 4,254 resolved applications.

Which examiners in Art Unit 2643 have the highest allowance rates?

Among examiners with at least 30 resolved applications: David Q Nguyen (91.7%, 727 resolved), Khalid W Shaheed (90.2%, 468 resolved), Jean Alland Gelin (89.5%, 1,034 resolved).

Which examiners in Art Unit 2643 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Jinsong Hu (36.7%, 30 resolved), Tabla K Glomah (40.6%, 32 resolved), Opiribo Georgewill (70.5%, 166 resolved).

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