Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931482 | Use of 1,1,1,4,4,4-hexaefluorobutane as a blowing and insulating gas for the production of foam plastics | Wilhelm Lamberts, Dietmar Bielefeldt, Albrecht Marhold, Michael Negele | 1990-06-05 |