Prosecution Insights
Last updated: October 25, 2026

USPTO Art Unit 1758: Examiners and Allowance Rates

49 examiners • 16 with pending office actions • Chemistry & Materials (Tech Center 1700)

Art unit baseline (last 5 years, 2,495 dispositions): 39% allowance rate • 3.3 office actions per allowance • 1,320 days median pendency
ExaminerAllowance rateResolved casesPending apps
Nathan W Ha100.0%10
Gary W Counts100.0%10
Kidest Worku100.0%10
Joseph W Drodge100.0%10
Tajash D Patel100.0%10
Neil N Turk100.0%10
Jyoti Nagpaul Mutreja100.0%10
Dung H Bui100.0%10
John Schuyler Mcguirk100.0%10
Jonathan Bortoli100.0%10
Lore Ramillano Jarrett100.0%10
Shogo Sasaki91.0%1770
Samuel P Siefke79.3%20829
Dennis Michael White72.2%15822
Regina M Yoo71.5%20740
Justin Hwang68.6%350
Golam Mowla67.4%2390
Brendan A Hensel66.9%17230
Mickey Nmn Huang59.6%10437
Madison Taylor Herbert57.1%2128
Henry H Nguyen55.7%20172
Jayne L Mershon52.1%3590
Eli S Mekhlin49.3%4890
Rebecca M Fritchman48.1%15866
Aham Nmn Lee47.6%4236
May Leung Chiu43.3%3028
Christina Chern42.9%560
Alea Natasha Martin42.6%470
Matthew T Martin41.0%2830
Magali P Slawski36.1%1580
Bethany Lambright Martin31.2%930
Nebyate Samuel Seged28.6%3527
Valerie Michelle Simmons27.7%4719
Marla D Mcconnell27.4%1750
Shannon M Gardner25.4%1220
Maris R Kessel25.0%202
Eric Michael Talbert22.2%4534
Christopher Danicic21.0%2000
Miriam Stagg20.0%500
Srilakshmi K Kumar20.0%50
Mayla Gonzalez Ramos19.1%1830
Sadie White16.4%1590
Matthew D Zapadka11.3%530
Dustin Q Dam10.9%2210
Jennifer Kolb Michener0.0%100
Sean M Mcfadden0.0%20
Ellen Jean Marcsisin0.0%10
Houston David Cole—016
Donavan Lee Bridges—08

Frequently Asked Questions

What is the allowance rate in USPTO Art Unit 1758?

38.8% over the last five years, across 2,495 resolved applications.

Which examiners in Art Unit 1758 have the highest allowance rates?

Among examiners with at least 30 resolved applications: Shogo Sasaki (91.0%, 177 resolved), Samuel P Siefke (79.3%, 208 resolved), Dennis Michael White (72.2%, 158 resolved).

Which examiners in Art Unit 1758 have the lowest allowance rates?

Among examiners with at least 30 resolved applications: Dustin Q Dam (10.9%, 221 resolved), Matthew D Zapadka (11.3%, 53 resolved), Sadie White (16.4%, 159 resolved).

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