Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6932116 | Fiber reinforced composite liner for lining an existing conduit and method of manufacture | David Hahn, John Ernest Gumbel | 2005-08-23 |
| 6923217 | Fiber reinforced composite liner for lining an existing conduit and method of manufacture | — | 2005-08-02 |
| 6708729 | Fiber reinforced composite liner for lining an existing conduit and method of manufacture | — | 2004-03-23 |