Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8778497 | Underlayment mat employed with a single-ply roofing system | Ralph Berryman Smith, Donald Otis McCleskey, L. Ralph Smith | 2014-07-15 |
| 6227401 | Rag bucket | Dale Rowland | 2001-05-08 |