Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6316751 | Apparatus for forming field joints on plastic coated pipe | Julio J. Fernandez | 2001-11-13 |
| 6059319 | Apparatus for forming field joints on plastic coated pipe | — | 2000-05-09 |
| 5804093 | Joint infill mold | David C. Dressel, James H. McBrien | 1998-09-08 |
| 5489405 | Composite joint infill system | Dennis E. Holbert, David C. Dressel, James H. McBrien | 1996-02-06 |
| 5458438 | Insulating pipe spacers | James H. McBrien | 1995-10-17 |
| 5328648 | Method of using a composite joint infill system | James H. McBrien, David C. Dressel | 1994-07-12 |
| 5294396 | Method of makikng anode protector | David C. Dressel, James H. McBrien | 1994-03-15 |
| 5164058 | Anode protector | David C. Dressel, James H. McBrien | 1992-11-17 |