Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5635554 | Low viscosity mixtures of amphiphilic nonionic graft copolymers and viscosity-reducing additives | Dieter Boeckh, Hans-Ulrich Jager, Rolf-Dieter Kahl, Gunnar Schornick | 1997-06-03 |