Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332600 | Method for making silica fibers | Arno Wegerhoff, Hans Zengel, Heinz Beck, Ernst Seeberger, Gerhard Steenken +1 more | 1982-06-01 |
| 4332601 | Method for making silica fibers | Arno Wegerhoff, Hans Zengel, Heinz Beck, Ernst Seeberger, Gerhard Steenken +1 more | 1982-06-01 |
| 4331588 | Zinc containing terephthaloyl-terephthal/oxal copolyhydrazide composition | Michael Wallrabenstein | 1982-05-25 |