Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D651223 | Machining insert for the initial machining and/or the reprofiling of at least one wheel of a vehicle that runs on rails, and for the initial machining and/or the reprofiling of a disc of a disc brake for atleast one wheel of a vehicle that runs on rails | Christian Grund, Karl Josef Schiefer | 2011-12-27 |
| 7677145 | Cutting insert, cutting insert tool, and method for machining a workpiece | Christian Grund, Karl Josef Schiefer | 2010-03-16 |
| 4813828 | Bottle boring milling tool | Hans W. Beck | 1989-03-21 |