Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975870 | Ring seal having sealing lobes | James R. Osborne, Michael R. Rivenburgh | 2011-07-12 |
| 7854434 | Ring seal with axially-opposed radially-offset seal beads | Timothy D. Heiman, James R. Osborne, Darron G. Peddle, Michael R. Rivenburgh | 2010-12-21 |