Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902682 | Coated sodium percarbonate particles, a process for their preparation and their use | Birgit Bertsch-Frank, Martin Bewersdorf, Claas-Juergen Klasen, Klaus Mueller, Juergen Rollmann | 1999-05-11 |
| 5658873 | Coated sodium percarbonate particles, a process for their production and detergent, cleaning and bleaching compositions containing them | Birgit Bertsch-Frank, Claas-Juergen Klasen, Klaus Mueller, Martin Bewersdorf | 1997-08-19 |
| 5632965 | Method for the preparation of stabilized sodium percarbonate | Claas-Juergen Klasen, Birgit Bertsch-Frank, Peter J. Schubert, Klaus Mueller | 1997-05-27 |
| 5560896 | Method for producing granulated sodium percarbonate | Martin Bewersdorf, Claas-Jurgen Klasen, Petra Look-Herber, Birgit Bertsch-Frank, Klaus Muller | 1996-10-01 |
| 5395602 | Method for the production of sodium perborate hydrate granulates | Joerg Herzig, Wolfgang Zikofsky, Birgit Bertsch-Frank | 1995-03-07 |
| 5094827 | High active oxygen content granulated sodium perborate product and method of making the same | Birgit Bertsch-Frank, Klaus Mueller | 1992-03-10 |
| 4968500 | Continuous method for preparation of granulated sodium perborate | Birgit Bertsch-Frank, Klaus Mueller | 1990-11-06 |
| 4879057 | Aqueous bleaching agent suspensions containing peroxycarboxylic acid, method for their preparation and use | Manfred Dankowski, Gunter Prescher, Wolfgang Leonhardt, Manfred Diehl | 1989-11-07 |
| 4790949 | Aqueous bleaching agent suspensions containing peroxycarboxylic acid, method for their preparation and use | Manfred Dankowski, Gunter Prescher, Wolfgang Leonhardt | 1988-12-13 |