Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5342570 | Method and apparatus for deforming reformable tubular pipe liners | Patrick R. Ledoux | 1994-08-30 |
| 5112211 | Pipe lining apparatus | Patrick R. Ledoux | 1992-05-12 |
| 4986951 | Pipe liner process | Patrick R. Ledoux | 1991-01-22 |
| 4863365 | Method and apparatus for deforming reformable tubular pipe liners | Patrick R. Ledoux | 1989-09-05 |