Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8846207 | Wear part with hard facing | Igor Yuri Konyashin, Frank Friedrich Lachmann | 2014-09-30 |
| D707736 | Chisel holder | Frank Friedrich Lachmann | 2014-06-24 |
| 8753755 | Body comprising hard face structure and method for making same | Igor Yuri Konyashin, Frank Friedrich Lachmann, Kersten Heinrich Schafer | 2014-06-17 |
| 8535407 | Hard-metal | Igor Yuri Konyashin, Frank Friedrich Lachmann | 2013-09-17 |
| D688282 | Tool | Frank Friedrich Lachmann | 2013-08-20 |
| 6343842 | Roller bit for tunnel-driving machines with segmented cutting rings | Klaus Sauer, Guenter Fennel, Ernst Heiderich, Reinhold Walter | 2002-02-05 |