Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9030067 | Bearing rotational lock | John Edward Raczek, Mark Bartz, C. Scott Eagleton, Jeffrey P. Nelessen, Gerald R. Muehlbauer | 2015-05-12 |
| 8482173 | End shield and inner bearing cap assembly | Christopher Thomas Ohrmundt, Wesley Kenneth Anderson | 2013-07-09 |
| 6612329 | Locking valve stem and cap apparatus | — | 2003-09-02 |