Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759635 | Magnetic stirrer apparatus with improved stirring action | Norman A. de Bruyne | 1988-07-26 |
| 4760028 | Bioreactor apparatus with surface aerator screen | Norman A. deBruyne, Gregg S. Feldscher | 1988-07-26 |