Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7168847 | Device for mixing and/or injecting cements | Christian Frei | 2007-01-30 |
| 6974247 | Device for mixing and/or injecting cements | Christian Frei | 2005-12-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7168847 | Device for mixing and/or injecting cements | Christian Frei | 2007-01-30 |
| 6974247 | Device for mixing and/or injecting cements | Christian Frei | 2005-12-13 |