Art Unit 1646

Group 1640Immunology

Active examiners
26
Average office actions per grant
2.02

Grant ratio

Art Unit 1646
55.6%
Group 1640
56.2%

Active examiners

Ruixiang Li 58.5% 1.94 August 2026
Gyan Chandra 70.9% 1.76 August 2026
Zachary C Howard 62.9% 1.90 August 2026
Prema Mertz 71.1% 1.76 August 2026
Michael Pak 57.9% 2.37 August 2026
Xiaozhen Xie 55.5% 2.37 August 2026
Examiner Dong Jiang 44.0% 2.18 June 2026
Andrea Mccollum 60.1% 2.19 August 2026
Claire Kaufman 62.5% 1.82 August 2026
Sandra Dillahunt 53.7% 2.68 August 2026
Karl J. Puttlitz 24.3% 2.14 August 2026
Peter J. Reddig 16.0% 2.44 August 2026
Hong Sang 18.8% 2.20 August 2026
Sarah A Alsomairy 13.3% 1.94 August 2026
Kathleen Cunningchen 16.8% 2.29 August 2026
Estella M. Gustilo 12.7% 1.55 August 2026
Mark Halvorson 17.9% 2.16 August 2026
Katherine Ann Holtzman 12.2% 1.86 August 2026
Carol Ann Chase 15.0% 1.52 August 2026
Danaya L Middleton 45.1% 1.87 August 2026
Lea S O'Brien 10.0% 1.27 August 2026
Vanessa L. Ford 17.9% 2.10 August 2026
Ashley Gao 76.5% 1.44 August 2026
Brittney E Donoghue 50.0% 1.55 August 2026
Liliana Cerullo 0.0% 1.00 July 2026
Nita M Minnifield 50.0% 2.05 August 2026

Examiner distribution

Median grant ratio
44.5%
Middle 50% of grant ratios
16.6%–58.9%
Median office actions / grant
1.94
Middle 50% of office actions / grant
1.76–2.19

Active examiners with at least 20 applications.

Other associated examiners

Examiners without recent activity.

Based on available public USPTO records; may be incomplete.

Job History

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