Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6413445 | Antifreeze concentrates and coolant compositions containing these concentrates for cooling circuits in internal combustion engines | Knut Oppenlander, Wolfgang H. H. Gunther, Klaus Pfitzner, Michael Gillich | 2002-07-02 |