Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5996643 | Foam insulation system for pipes | — | 1999-12-07 |
| 4484386 | Method of field insulating pipe joints | — | 1984-11-27 |
| 4221405 | Conduit system with expansion coupling and combined spacer and sealing sleeve | Richard W. Stonitsch | 1980-09-09 |