Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7958890 | Dry powder inhaler | Michael Ligotke, Jeffrey Chen, Charles F. Ganem, Bernard Greenspan | 2011-06-14 |
| 6971384 | Dry powder inhaler | Michael Ligotke, Jeffrey Chen, Charles F. Ganem, Bernard Greenspan | 2005-12-06 |
| 6715486 | Dry powder inhaler | Michael Ligotke, Jeffrey Chen, Charles F. Ganem, Bernard Greenspan | 2004-04-06 |
| 6427688 | Dry powder inhaler | Michael Ligotke, Robert F. Eisele, Thomas Jackson, Jeffrey Chen, Bernard Greenspan +2 more | 2002-08-06 |