Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822392 | Apparatus for producing fibres from silicate raw materials such as basalt by blast drawing | Klaus Sistermann, Heinz-Jurgen Ungerer | 1989-04-18 |
| 4698086 | Apparatus for producing mineral fibres from molten silicate by blast drawing | Klaus Sistermann, Heinz-Jurgen Ungerer | 1987-10-06 |