Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4761323 | Method and article for the production of porous fiber bats | August Muhlratzer, Siegfried Lassmann, Roland Bertinger, Renate Sanden | 1988-08-02 |
| 4473447 | Method of manufacturing absorption layers for solar energy systems and bath therefor | Edwin Erben, August Muhlratzer, Boy Cornils, Bela Tihanyi, Werner DeWin | 1984-09-25 |