Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8162567 | Water retention cell structures | — | 2012-04-24 |
| 6684579 | Drainage mat and mortar blocker | James R. Brunson, C. Davis Carman | 2004-02-03 |
| 6280117 | Universal drain fitting | T. Richard Morris | 2001-08-28 |