Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6253486 | Composite lawn edging | Thomas N. Prassas | 2001-07-03 |
| D418233 | Lawn edging | Thomas N. Prassas | 1999-12-28 |
| 5921586 | Variable size fitting | Thomas N. Prassas | 1999-07-13 |
| 5776387 | Method of forming stabilized porous pipe | Thomas N. Prassas | 1998-07-07 |
| D390671 | Lawn edging | Thomas N. Prassas | 1998-02-10 |
| 5474398 | Stabilized porous pipe | Thomas N. Prassas | 1995-12-12 |
| 5445775 | Method of forming U.V. stabilized porous pipe | Thomas N. Prassas | 1995-08-29 |
| 5358180 | Selectable spray pattern low volume sprinkler | Thomas N. Prassas, Allan L. Smith | 1994-10-25 |
| 5299885 | Stabilized porous pipe | Thomas N. Prassas | 1994-04-05 |
| 5257826 | Multiple purpose irrigation fitting | Thomas N. Prassas | 1993-11-02 |
| 5131597 | Irrigation system with flow regulation | Thomas N. Prassas | 1992-07-21 |
| 5104150 | Multiple purpose irrigation fitting | Thomas N. Prassas | 1992-04-14 |
| 5069388 | Porous pipe landscape system | Thomas N. Prassas | 1991-12-03 |