Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992514 | Imparted charge in situ pipelining device | Dudley J. Primeaux, II | 2011-08-09 |
| 7866277 | Apparatus and method for lining large diameter pipe with environmentally compatible impervious membrane | — | 2011-01-11 |
| 7867558 | Apparatus and method for lining large diameter pipes with an environmentally compatible impervious membrane | — | 2011-01-11 |