Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5182100 | Plaque-inhibiting oral and dental care preparations | Hans-Juregen Klueppel | 1993-01-26 |
| 5158692 | Wetting agents for use in aqueous alkaline treatment preparation for yarns or sheet-form textiles | Faize Berger, Bernd Wahle | 1992-10-27 |
| 5117032 | Process for making glycerol ether sulfates | Bert Gruber, James R. Tucker, Brigitte Giesen | 1992-05-26 |
| 5104585 | Detergent mixture of an alkylglycoside surfactant and an hydroxyalkyl sulfonate | Brigitte Giesen, Karlheinz Hill, Martina Kihn-Botulinski, Robert Piorr | 1992-04-14 |
| 5072015 | Carbonic acid fatty alcohol ester sulfonates, a process for their production and surface-active agents containing them | Alfred Westfechtel, Horst Eierdanz, Ansgar Behler | 1991-12-10 |
| 5041597 | Surface-active sulfophosphoric-acid-(partial)-alkyl-esters | Hans-Herbert Friese, Friedrich Pieper, Guenter Uphues | 1991-08-20 |
| 4981617 | Process for the preparation of reaction products of epoxidized ricinoleic acid glycerides with sulfur trioxide | Robert Piorr, Frank Clasen, Horst Ritterbex, Hans Bornmann | 1991-01-01 |
| 4956116 | Surface-active, saturated sulfophosphoric acid-(partial)-alkyl esters | Hans-Herbert Friese, Friedrich Pieper, Guenter Uphues | 1990-09-11 |
| 4943393 | Process for the manufacture of ester sulfonate pastes of low viscosity | Robert Piorr | 1990-07-24 |
| 4865774 | Surface-active hydroxysulfonates | Robert Piorr, Astrid Schumacher | 1989-09-12 |