Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534720 | Apparatus for the preparation of bonding fibers from polymer dispersions | Richard Bung, Gerold Schreyer, Gerhard Welzel | 1985-08-13 |
| 4485055 | Reproducible production of shaped articles of various geometries from polymer dispersions, melts or solutions | Richard Bung, Gerold Schreyer, Gerhard Welzel | 1984-11-27 |
| 4224421 | Water-soluble, crosslinked nitrogen-containing condensation products | Werner Streit, Rolf Fikentscher, Gerhard Welzel, Klaus Glaser, Emil Schaefer | 1980-09-23 |