Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32503 | Silicic acid for the filtration of beverages particularly beer | — | 1987-09-15 |
| 4471019 | Water-containing water glass fibers | Arno Wegerhoff, Hans Zengel, Walter Brodowski, Heinz Beck, Ernst Seeberger +1 more | 1984-09-11 |
| 4457900 | Silicic acid for the filtration of beverages, particularly beer | — | 1984-07-03 |
| 4332600 | Method for making silica fibers | Arno Wegerhoff, Hans Zengel, Walter Brodowski, Heinz Beck, Ernst Seeberger +1 more | 1982-06-01 |
| 4332601 | Method for making silica fibers | Arno Wegerhoff, Hans Zengel, Walter Brodowski, Heinz Beck, Ernst Seeberger +1 more | 1982-06-01 |