Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7204457 | Barrier net | David Ackerman, John William Startup | 2007-04-17 |
| 7160070 | Barrier net | David Ackerman, Stephen Robert Carden, John William Startup | 2007-01-09 |
| 7086803 | Thimble | David Ackerman, Ian Mays | 2006-08-08 |
| 7080967 | Nets | David Ackerman | 2006-07-25 |