Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7410578 | Underdrain apparatus and method of manufacturing same | David M. Hambley, Philip Hambley, Govert L. Bassett | 2008-08-12 |
| 6797166 | Underdrain apparatus | Philip Hambley, David M. Hambley, Govert L. Bassett | 2004-09-28 |