Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6983580 | Variable size product on edge packaging system | Ken S. Layton, Robert Doug Robinson, Clyde Spinks | 2006-01-10 |
| 6620361 | Method of manufacturing a composite seal | Scott Longtin, Stephen J. Carr, Frederick R. Hatch, Gary B. Drake, Ronald Noteboom +1 more | 2003-09-16 |
| 6213476 | Bi-modulus composite seal and its method of manufacture | Gary B. Drake, Stephen J. Carr | 2001-04-10 |
| 5676383 | Hydrodynamic low-torque lubricant seal with pumping projections | — | 1997-10-14 |
| 5129744 | Two component bearing seal with bumpers | Dennis L. Otto, Joseph A. Abbruzzi, Mark E. Baker | 1992-07-14 |
| 5082612 | Method of making an oil seal having two lips formed by splitting the blank | John D. Butler | 1992-01-21 |
| 5013052 | Oil seal having attached thereto two aligned polytetrafluoroethylene pieces forming seal lips | John D. Butler | 1991-05-07 |
| 4822058 | Radial lip seal | John D. Butler | 1989-04-18 |