Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318956 | Use of selected ester oils in water-based drilling fluids of the O/W emulsion type and corresponding drilling fluids with improved ecological acceptability | Heinz Mueller, Claus-Peter Herold, Stephan von Tapavicza | 1994-06-07 |
| 5308623 | Resorbable bone wax | Wolfgang Ritter | 1994-05-03 |