Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6380137 | Copolymers and their use as drilling aids | Karl Heinz Heier, Roman Morschhäuser, Aranka Tardi, Susanne Weber | 2002-04-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6380137 | Copolymers and their use as drilling aids | Karl Heinz Heier, Roman Morschhäuser, Aranka Tardi, Susanne Weber | 2002-04-30 |