Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6708728 | Installation of cured in place liners with air and steam and installation apparatus | Weiping Wang | 2004-03-23 |
| 6682668 | Installation of cured in place liners with an endless reusable inflation bladder and installation apparatus | Charles H. Nance, Richard C. Polivka | 2004-01-27 |
| 6679293 | Pressurized bladder canister for installation of cured in place pipe | — | 2004-01-20 |