Art Unit 1646
Group 1640Immunology
- Active examiners
- 25
- Average office actions per grant
- 2.02
Grant ratio
- Art Unit 1646
- 55.4%
- Group 1640
- 55.9%
Active examiners
| Ruixiang Li | 58.5% | 1.94 | September 2026 |
|---|---|---|---|
| Gyan Chandra | 70.9% | 1.76 | October 2026 |
| Zachary C Howard | 62.9% | 1.90 | October 2026 |
| Prema Mertz | 71.1% | 1.76 | September 2026 |
| Michael Pak | 57.9% | 2.37 | October 2026 |
| Xiaozhen Xie | 55.5% | 2.37 | September 2026 |
| Andrea Mccollum | 60.1% | 2.19 | August 2026 |
| Claire Kaufman | 62.5% | 1.82 | September 2026 |
| Sandra Dillahunt | 53.7% | 2.68 | October 2026 |
| Karl J. Puttlitz | 22.9% | 2.14 | September 2026 |
| Peter J. Reddig | 15.1% | 2.44 | October 2026 |
| Hong Sang | 18.8% | 2.20 | September 2026 |
| Kathleen Cunningchen | 15.7% | 2.29 | October 2026 |
| Sarah A Alsomairy | 12.7% | 1.94 | September 2026 |
| Estella M. Gustilo | 11.9% | 1.55 | October 2026 |
| Mark Halvorson | 17.5% | 2.16 | October 2026 |
| Katherine Ann Holtzman | 11.5% | 1.86 | October 2026 |
| Carol Ann Chase | 14.5% | 1.52 | October 2026 |
| Danaya L Middleton | 45.1% | 1.87 | October 2026 |
| Lea S O'Brien | 10.0% | 1.27 | August 2026 |
| Vanessa L. Ford | 17.9% | 2.10 | October 2026 |
| Ashley Gao | 76.5% | 1.44 | September 2026 |
| Brittney E Donoghue | 50.0% | 1.55 | October 2026 |
| Liliana Cerullo | 0.0% | 1.00 | July 2026 |
| Nita M Minnifield | 50.0% | 2.05 | October 2026 |
Examiner distribution
- Median grant ratio
- 45.1%
- Middle 50% of grant ratios
- 15.4%–59.3%
- 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.
| Elizabeth C. Kemmerer | 65.8% | 1.97 | October 2025 Appears inactive |
|---|---|---|---|
| Examiner Dong Jiang | 44.0% | 2.18 | June 2026 Potentially inactive |
| Bruce D. Hissong | 55.3% | 2.19 | November 2020 Appears inactive |
| Jegatheesan Seharaseyon | 52.2% | 1.85 | August 2022 Appears inactive |
| Sandra Wegert | 21.3% | 1.82 | July 2012 Appears inactive |
| Nada Ahmed Mahmoud Elmansy | 22.6% | 1.29 | October 2025 Appears inactive |
| Stephen Rawlings | 65.0% | 2.12 | March 2025 Appears inactive |
| Nirmal S. Basi | 47.4% | 1.00 | May 2009 Appears inactive |
| Janet Epps-Smith | 0.0% | 2.65 | December 2025 Appears inactive |
| Carol Ann Chase | 0.0% | N/A | April 2026 Potentially inactive |
| Sharon Turner | 0.0% | 2.57 | February 2025 Appears inactive |
Based on available public USPTO records; may be incomplete.