Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11318640 | Method for making a continuously cast slab and the resulting mold plate | Terry O. Henn, Kristopher D. Welch, Christian Rottmair, Robert J. Friedrich | 2022-05-03 |
| 8557059 | Plastic injection mold of low carbon martensitic stainless steel | Kristopher D. Welch, Robert J. Friedrich, Eric D. Henn | 2013-10-15 |
| 6358334 | Steel holder block for plastic molding | Eric D. Henn, Robert J. Friedrich | 2002-03-19 |
| 6045633 | Steel holder block for plastic molding | Eric D. Henn, Robert J. Friedrich | 2000-04-04 |