Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6092809 | Secondary seal for a sealing arrangement | Stephen J. Pierz, Gregory M. Wetterich | 2000-07-25 |
WK
William N. Keifer
Overall (All Time): #3,621,802 of 4,157,543Top 90%
1
Patents All Time