Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658873 | Coated sodium percarbonate particles, a process for their production and detergent, cleaning and bleaching compositions containing them | Birgit Bertsch-Frank, Claas-Juergen Klasen, Thomas Lieser, Martin Bewersdorf | 1997-08-19 |
| 5632965 | Method for the preparation of stabilized sodium percarbonate | Claas-Juergen Klasen, Birgit Bertsch-Frank, Thomas Lieser, Peter J. Schubert | 1997-05-27 |