Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10308743 | Water-soluble or water-disintegrable copolymer | Herbert Leder, Frank Osan | 2019-06-04 |
| 9777090 | Water-soluble or water-disintegrable copolymer | Herbert Leder, Frank Osan | 2017-10-03 |
| 9399691 | Water-soluble or water-disintegrable copolymer | Herbert Leder, Frank Osan | 2016-07-26 |
| 5863885 | Pack containing a dry alkaline solid | Heiner Deibig, Lee Wielgolinski, Jan Staal, Guido Clemens van den Brom | 1999-01-26 |