Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224421 | Water-soluble, crosslinked nitrogen-containing condensation products | Werner Streit, Rolf Fikentscher, Karl Gans, Gerhard Welzel, Klaus Glaser | 1980-09-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224421 | Water-soluble, crosslinked nitrogen-containing condensation products | Werner Streit, Rolf Fikentscher, Karl Gans, Gerhard Welzel, Klaus Glaser | 1980-09-23 |