Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7773865 | Assembly for conducting and tempering fluids and method for producing said assembly | Sylvia Freiberger, Michael Schöbel, Lutz Görmer, Gerhard Ruckdäschel, Michael A. Weber | 2010-08-10 |
| 5676221 | Gear case | Richard J. Renk | 1997-10-14 |
| D340890 | Railway truck wear liner | Gordon J. Martin | 1993-11-02 |
| 5255815 | Filler cap | Richard J. Renk | 1993-10-26 |
| 5123297 | Lubricant retaining device | Richard J. Renk | 1992-06-23 |
| 5082089 | Traction motor suspension bearing lubricator | Richard J. Renk, George E. Boller | 1992-01-21 |
| 5038631 | Lubricant restricting device | Richard J. Renk, George E. Boller | 1991-08-13 |
| 4892000 | Lubricant restricting device | Richard J. Renk, George E. Boller | 1990-01-09 |