Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646196 | C.sub.3 to C.sub.5 polyfluorcalkanes propellants | Claus-Dieter Sommerfeld, Dietmar Bielefeldt, Albrecht Marhold, Michael Negele | 1997-07-08 |
| 5624970 | C.sub.3 to C.sub.5 polyfluorcalkanes propellants | Claus-Dieter Sommerfeld, Dietmar Bielefeldt, Albrecht Marhold, Michael Negele | 1997-04-29 |
| 5602190 | Process for the production of hard polyurethane foams | Norbert Eisen, James A. Thompson-Colón | 1997-02-11 |