Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876067 | Multilayer test strip device with a dissolvable reagent layer | Ulfert Deneke, Anselm Rothe, Helmut Freitag | 1989-10-24 |
| 4874812 | Single-component polyrethane coating mass | Gunter Muller, Jurg Stahli | 1989-10-17 |
| 4812356 | Coating composition for flexible substrates and the use thereof, and a method for the production of a protective coating | Rainer Meyer, Reinmar John, Gunter Muller | 1989-03-14 |