Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818630 | Biologically active materials | Ruth Duncan, Dale Howard Hreczuk-Hirst | 2004-11-16 |
| 6338843 | Biologically active materials | Ruth Duncan, James J. Cassidy, Dale Hirst | 2002-01-15 |