Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D449310 | Pond pump | Mark Agresta, David William Pool, James Hess, John Randall Hegstad, Kay Jungblut | 2001-10-16 |
| D434779 | Pond pump | Mark Agresta, David William Pool, James Hess, John Randall Hegstad, Kay Jungblut | 2000-12-05 |