Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6592850 | Sildenafil citrate chewing gum formulations and methods of using the same | Weisheng Li, Ronald L. Ream | 2003-07-15 |
| 6531114 | Sildenafil citrate chewing gum formulations and methods of using the same | Weisheng Li, Ronald L. Ream | 2003-03-11 |
| 6200608 | Process of producing chewing gum base in particle form and product thereof | Kenneth M. Kanca, Weisheng Li, Frederick H. Marshall, Edward J. Zuromski | 2001-03-13 |