Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 1751: Examiners and Allowance Rates

22 examiners • 14 with pending office actions • Chemistry & Materials (Tech Center 1700)

Art unit baseline (last 5 years, 1,083 dispositions): 62% allowance rate • 4.2 office actions per allowance • 1,212 days median pendency
ExaminerAllowance rateResolved casesPending apps
Hae M Hyeon100.0%10
Jeffrey J Restifo100.0%10
Aiman Amir Bickiya100.0%10
Alexander Usyatinsky94.4%10820
Jonathan G Leong85.0%405
Haroon S Sheikh82.9%14023
Kiran Quraishi Akhtar81.3%10726
Cynthia Kyung Soo Walls71.4%14744
Tony Sheng Hsiang Chuo63.7%14639
Kan Luo59.2%7616
John Samuel Medley57.1%7738
Katharine Ann Caughron56.9%510
Claire A Rutiser53.3%9234
Aryana Yasmine Ortiz50.0%5636
Taeyoung Son45.7%3530
Drew C Newman41.8%6726
Everett Timothy Choi10.0%2034
Christine Conlon Disney0.0%50
Fred M Teskin0.0%10
Nazmun Nahar Shams0.0%10
Miriam Nchekwubechu Ezeluomba0.0%10
Esther Jiesi Tan—026

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 1751?

62.1% over the last five years, across 1,083 resolved applications.

Which examiners in Art Unit 1751 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Alexander Usyatinsky (94.4%, 108 resolved), Jonathan G Leong (85.0%, 40 resolved), Haroon S Sheikh (82.9%, 140 resolved).

Which examiners in Art Unit 1751 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Drew C Newman (41.8%, 67 resolved), Taeyoung Son (45.7%, 35 resolved), Aryana Yasmine Ortiz (50.0%, 56 resolved).

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