Art Unit 1644
Group 1640Immunology
- Active examiners
- 25
- Average office actions per grant
- 2.12
Grant ratio
- Art Unit 1644
- 51.3%
- Group 1640
- 55.8%
Active examiners
| Michail A Belyavskyi | 56.2% | 1.89 | October 2026 |
|---|---|---|---|
| Ilia Ouspenski | 70.6% | 1.58 | October 2026 |
| Phuong Huynh, Ph.D | 63.7% | 2.05 | October 2026 |
| Amy E Juedes | 39.1% | 2.65 | October 2026 |
| Maher Haddad | 46.6% | 1.99 | October 2026 |
| Zachary Skelding | 53.4% | 1.93 | October 2026 |
| Michael Szperka | 58.7% | 1.80 | October 2026 |
| Yunsoo Kim | 63.2% | 2.73 | October 2026 |
| Nora M. Rooney | 57.8% | 2.47 | October 2026 |
| Chun Dahle | 48.3% | 2.35 | October 2026 |
| Marianne Dibrino | 37.8% | 3.20 | October 2026 |
| Sharon Wen | 53.5% | 2.07 | October 2026 |
| Peter Johansen | 37.3% | 2.30 | October 2026 |
| Maureen Driscoll | 29.7% | 1.57 | October 2026 |
| James R. Melchior | 27.4% | 1.48 | October 2026 |
| Lia Taylor | 58.5% | 2.10 | October 2026 |
| Hilary Ann Petrash | 32.6% | 1.79 | October 2026 |
| Lindsay Dunn | 0.0% | N/A | October 2026 |
| Julia A Rossi | 10.8% | 1.00 | October 2026 |
| Dennis George | 3.6% | 2.00 | October 2026 |
| Estella M. Gustilo | 57.1% | 1.55 | October 2026 |
| Katherine Ann Holtzman | 57.1% | 1.86 | October 2026 |
| Lea S O'Brien | 41.2% | 1.27 | October 2026 |
| Liliana Cerullo | 0.0% | 1.00 | October 2026 |
| Dennis John Sullivan | 0.0% | 1.73 | October 2026 |
Examiner distribution
- Median grant ratio
- 50.9%
- Middle 50% of grant ratios
- 33.8%–57.6%
- Median office actions / grant
- 1.99
- Middle 50% of office actions / grant
- 1.79–2.30
Active examiners with at least 20 applications.
Other associated examiners
Examiners without recent activity.
| Phillip Gambel | 46.3% | 1.94 | November 2022 Appears inactive |
|---|---|---|---|
| Dr. Gerald Ewoldt | 29.3% | 3.23 | April 2024 Appears inactive |
| James Rogers | 60.9% | 1.99 | November 2023 Appears inactive |
| Ron Schwadron, Ph.D | 20.5% | 2.63 | November 2017 Appears inactive |
| Brian Hartnett | 50.0% | 2.22 | February 2026 Appears inactive |
| David A. Saunders | 67.5% | 2.27 | August 2012 Appears inactive |
| Brianna K Swartwout | 27.3% | 1.71 | February 2026 Appears inactive |
| Daniel Kolker | 43.2% | 2.03 | May 2026 Potentially inactive |
| F. Pierre Vandervegt | 31.3% | 1.20 | June 2009 Appears inactive |
| Bailey O'Shea | 0.0% | 1.22 | April 2026 Potentially inactive |
| Lei Yao | 0.0% | 1.86 | May 2026 Potentially inactive |
Based on available public USPTO records; may be incomplete.