Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6122860 | Method of boosting surface consolidation of soil threatened by erosion | Stefan Von Tapavicza, Heinz Mueller, Claus-Peter Herold, Heinz Boettcher | 2000-09-26 |
| 5403822 | Esters of carboxylic acids of medium chain-length as a component of the oil phase in invert drilling muds | Heinz Mueller, Claus-Peter Herold, Stephan von Tapavicza, Michael Neuss, Wolfgang Zoellner | 1995-04-04 |
| 5318954 | Use of selected ester oils of low carboxylic acids in drilling fluids | Heinz Mueller, Claus-Peter Herold, Stephan von Tapavicza, Michael Neuss | 1994-06-07 |