Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927702 | Thermal insulating material | August Muhlratzer, Karin Handrick, Alfred Hirt | 1990-05-22 |
| 4761323 | Method and article for the production of porous fiber bats | August Muhlratzer, Roland Bertinger, Herbert Gutwein, Renate Sanden | 1988-08-02 |