Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411439 | Sealing member with anti-extrusion means and protective coating | Paul L. Couvillion | 1983-10-25 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411439 | Sealing member with anti-extrusion means and protective coating | Paul L. Couvillion | 1983-10-25 |