Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488802 | Pipe extrusion process | Jerry C. Levingston | 2002-12-03 |
| 6105649 | Pipe extrusion apparatus including winding a hollow profile | Jerry C. Levingston | 2000-08-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488802 | Pipe extrusion process | Jerry C. Levingston | 2002-12-03 |
| 6105649 | Pipe extrusion apparatus including winding a hollow profile | Jerry C. Levingston | 2000-08-22 |