Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8003580 | Consolidated proppants having high mechanical strength and process for the preparation thereof | Andreas Altherr, Klaus Endres, Helmut Schmidt | 2011-08-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8003580 | Consolidated proppants having high mechanical strength and process for the preparation thereof | Andreas Altherr, Klaus Endres, Helmut Schmidt | 2011-08-23 |