Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360240 | Method of connecting plastic pipe joints to form a liner for an existing pipeline and a plastic pipe joint for forming such liner | — | 1994-11-01 |
| 5338074 | Threaded pipe connection | H. Paul Barringer, Gary E. Kirsch, Lawrence Y. Tung | 1994-08-16 |