Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7341715 | Method and agents on the basis of 2-mercaptopropionic acid amides for durable hair forming and a method for producing same | Beate Dannecker, Ursus Schweizer, Regina Ortmann, Wolfgang Hanefeld | 2008-03-11 |
| 6482808 | Use of reductive compounds for strengthening and improving the structure of materials containing keratin | Christian Springob, Manuela Javet, Ursula Hehner, Thomas Kripp, Beate Grasser +1 more | 2002-11-19 |
| 6399051 | Method and agents for permanently styling hair, with a base consisting of N,N-disubstituted mercaptoacetamides | Beate Dannecker, Wolfgang Hanefeld, Heiko Walther | 2002-06-04 |
| 6153178 | Agent and process for permanent hair wave based on mercaptoacetamides | Beate Dannecker, Wolfgang Hanefeld, Heiko Walther | 2000-11-28 |
| 6153180 | Agent and method for permanently shaping the hair, based on n-branched-chain alkyl-substituted mercapto acetamides and process for their preparation | Beate Dannecker, Wolfgang Hanefeld, Heiko Walther | 2000-11-28 |
| 6153196 | Use of flower wax in liquid hair-treatment agents | Thomas Kripp, Beate Krause, Wolfgang Maurer, Ingrid Toeche-Mittler | 2000-11-28 |
| 5985253 | Hair shaping compositions containing mercaptoethylamines and methods for the permanent shaping of hair using same | Heiko Walther, Beate Dannecker, Wolfgang Hanefeld | 1999-11-16 |
| 5961999 | Method of skin care using a skin care preparation containing a betaine ester and an .alpha.-hydroxy acid | Rudolf Bimczok | 1999-10-05 |
| 5679332 | Hair keratin-reducing cysteine esters and compositions for permanent shaping of hair based on same | Hans-Juergen Braun, Gerhard Maresch | 1997-10-21 |
| 5637295 | Methods and compositions for permanent shaping of hair | Kirstin Uhl, Gerhard Sendelbach, Gerhard Maresch | 1997-06-10 |
| 5503826 | Hair keratin-reducing mono, di- and triglycerides of cysteine and compositions | Hans-Juergen Braun, Gerhard Maresch | 1996-04-02 |
| 4938950 | Cosmetic composition based upon chitosan and ampholytic copolymerizates, as well as new chitosan/polyampholyte salts | Harald Wendel | 1990-07-03 |
| 4603048 | Acid tenside-anion solution of chitosan and its use in cosmetic preparations | Eugen Konrad | 1986-07-29 |