Art Unit 1639
Group 1630Stem Cells and Nucleic Acid Related Therapy
- Active examiners
- 12
- Average office actions per grant
- 2.23
Grant ratio
- Art Unit 1639
- 52.8%
- Group 1630
- 52.0%
Active examiners
| Kaijiang Zhang | 71.9% | 1.53 | August 2026 |
|---|---|---|---|
| Christopher M. Gross | 63.0% | 2.30 | August 2026 |
| Christian Boesen | 77.4% | 1.71 | August 2026 |
| Jeremy Flinders | 65.2% | 2.45 | August 2026 |
| Amy M Bunker | 31.7% | 3.96 | August 2026 |
| Sahana S Kaup | 38.6% | 2.98 | June 2026 |
| Robert Havlin | 52.6% | 2.39 | August 2026 |
| Amber D Steele | 33.1% | 1.82 | August 2026 |
| Sue Liu | 26.9% | 2.09 | August 2026 |
| Heather G. Calamita | 0.0% | 1.49 | August 2026 |
| Randi L Beil | 33.3% | 1.81 | August 2026 |
| Liliana Cerullo | 0.0% | 1.00 | July 2026 |
Examiner distribution
- Median grant ratio
- 45.6%
- Middle 50% of grant ratios
- 32.0%–64.6%
- Median office actions / grant
- 2.19
- Middle 50% of office actions / grant
- 1.74–2.44
Active examiners with at least 20 applications.
Other associated examiners
Examiners without recent activity.
| Karla Dines | 56.8% | 2.32 | February 2021 Appears inactive |
|---|---|---|---|
| Karen S. Weiler | 46.7% | 2.75 | January 2020 Appears inactive |
| Teresa Wessendorf | 29.5% | 2.34 | June 2014 Appears inactive |
| Jeff Lundgren | 35.7% | 1.91 | April 2026 Potentially inactive |
| Valerie Toodle | 18.3% | 2.09 | August 2016 Appears inactive |
| Kawai Lau | 34.6% | 2.90 | September 2023 Appears inactive |
| Richard L. Manteuffel | 45.7% | 1.81 | January 2015 Appears inactive |
| Christopher Reyes | 12.1% | 1.50 | November 2014 Appears inactive |
| Taryn Kimberly Wood | 69.0% | 1.58 | December 2022 Appears inactive |
| Jonah Smith | 23.1% | 1.67 | June 2014 Appears inactive |
| Jon D Epperson | 100.0% | 1.00 | February 2008 Appears inactive |
| Shannon Janssen | 0.0% | 2.29 | May 2016 Appears inactive |
Based on available public USPTO records; may be incomplete.