Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4453721 | Dual element seals with hydrodynamic support | James P. Angus | 1984-06-12 |
| 4330133 | Dual-ring seal with temperature compensation | James P. Angus, John M. Robertson | 1982-05-18 |
JP
Jack Palfreyman
Overall (All Time): #2,358,420 of 4,157,543Top 60%
2
Patents All Time