Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6004412 | Method and system for repairing a damaged plastic pipe | Stephen Cecil Grigory, Glen William Deel, Rolf Glauser | 1999-12-21 |
| 5954095 | Apparatus and method for sealing a damaged pipe | Stephen Cecil Grigory, Jeffrey Gene Wright, Donald W. Johnson | 1999-09-21 |
| 5920976 | Apparatus and method for remotely sealing a damaged pipe | Stephen Cecil Grigory, Jeffrey Gene Wright, Donald W. Johnson | 1999-07-13 |