Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5306449 | Process for lining high pressure pipeline | John D. Kirkpatrick | 1994-04-26 |
| 4818314 | Process for lining a high pressure pipeline | John D. Kirkpatrick | 1989-04-04 |
| 4496499 | Process for lining high pressure pipeline | John D. Kirkpatrick | 1985-01-29 |