Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5979202 | Method and apparatus for making pipe line steel grooved-end fittings | — | 1999-11-09 |
| 5149144 | Pipe branch fitting and branch appliance therefor | — | 1992-09-22 |
| 5031755 | Pipe line termination system | — | 1991-07-16 |
| 4391458 | Pipe coupling with gasket locating means | — | 1983-07-05 |
| 4350350 | Self-compensation gasket for grooved end pipe couplings | — | 1982-09-21 |