Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961695 | Facility for generating fibers, in particular mineral fibers, from a molten mass | Clemens Hirschmann, Joachim Mellem | 1990-10-09 |
| 4940478 | Method of melting raw materials | Wilfried Naber, Klaus Sistermann | 1990-07-10 |
| 4822392 | Apparatus for producing fibres from silicate raw materials such as basalt by blast drawing | Gaston Fachat, Klaus Sistermann | 1989-04-18 |
| 4698086 | Apparatus for producing mineral fibres from molten silicate by blast drawing | Gaston Fachat, Klaus Sistermann | 1987-10-06 |
| 4269800 | Process for the preparation of a composite mat consisting of a layer of mineral wool and a layer of steel wool | Rolf-Dieter Sommer, Gustav Schweinfurth | 1981-05-26 |