Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5464228 | Restraining element for pressure pipe joints | Lawrence S. Jones | 1995-11-07 |
| 5295697 | Restraining element for pressure pipe joints | Lawrence S. Jones | 1994-03-22 |
| 5269569 | Bell lip restraining configuration for pressure pipe | Lawrence S. Jones | 1993-11-23 |