Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4946653 | Process for the simultaneous classification and regulated, continuous discharge of particulate material from fluidized bed reactors | Gerhard Stopp, Horst Karkossa, Karl Mannes, Hans-Joachim Laakmann, Viktor Trescher | 1990-08-07 |
| 4842628 | Method of verifying a porous article made out of glass soot and furnace for carrying out the method | Fritz Simmat, Anton Steinkohl, Wolfgang Englisch | 1989-06-27 |
| 4666495 | Apparatus for manufacturing stria-free, bubble-free and homogeneous quartz-glass plates | Fritz Simmat | 1987-05-19 |
| 4612023 | Method of manufacturing stria-free, bubble-free and homogeneous quartz-glass plates | Fritz Simmat | 1986-09-16 |
| 4475204 | Method and apparatus for the production of flat, transparent vitreous silica slabs of low bubble content | Lutz Brandt, Karlheinz Rau, Horst Schmidt, Fritz Simmat | 1984-10-02 |
| 4377405 | Method for the production of flat, transparent vitreous silica slabs of low bubble content | Lutz Brandt, Karlheinz Rau, Horst Schmidt, Fritz Simmat | 1983-03-22 |