Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7514027 | Process for manufacturing products of mineral wool, in particular monolayer and multilayer products | Johannes Horres | 2009-04-07 |
| 5743933 | Apparatus and method for defibrating optically dense glass melts | — | 1998-04-28 |
| 5368623 | Process and apparatus for the continuous production of mineral wool nonwovens | Klemens Hirschmann | 1994-11-29 |
| 5296013 | Process and apparatus for the continuous production of mineral wool nonwovens | Klemens Hirschmann | 1994-03-22 |
| 5230763 | Process for manufacturing a surface element to absorb electromagnetic waves | Klaus Roth | 1993-07-27 |
| 5093069 | Process and device for the production of mineral wool nonwoven fabrics especially from rock wool | Klemens Hirschmann, Heinz-Juergen Ungerer, Hans Furtak | 1992-03-03 |
| 4961695 | Facility for generating fibers, in particular mineral fibers, from a molten mass | Clemens Hirschmann, Heinz-Jurgen Ungerer | 1990-10-09 |