Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D464741 | Safety tile for paving a playground area | David Brady | 2002-10-22 |
| 4905443 | Node member for use in building a geodesic structure | Keith Critchlow, Philip J. Gray | 1990-03-06 |