Issued Patents All Time
Showing 51–60 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898725 | Preparations for washing or rinsing hair containing di- or tri- carboxylic acids | Kurt Seidel, Karl Giede, Alfred Struve, Bert Gruber | 1990-02-06 |
| 4859206 | Hair dye preparations containing nitrodiphenylamine derivative | David Rose, Edgar Lieske, Norbert Maak | 1989-08-22 |
| 4834971 | Hair permanent-waving method and aftertreatment composition | Adolf Klenk, Detlef Hollenberg | 1989-05-30 |
| 4824594 | Free-flowing pearlescent concentrate | Anke Kaczich | 1989-04-25 |
| 4820511 | Hair care and aftertreatment preparations | Fritz Lange, Karl Giede | 1989-04-11 |
| 4814101 | Zwitterionic polymers and their use in hair treatment preparations | Ludwig Schieferstein, Kurt Seidel, Karl Giede, Peter Busch | 1989-03-21 |
| 4795632 | Preparations for washing and rinsing hair | Karl Giede | 1989-01-03 |
| 4784801 | Hair treatment preparations | Fritz Lange, Karl Giede | 1988-11-15 |
| 4761249 | Soil-collecting cleaning enhancers in aqueous surfactant laundering and cleaning solutions | Karl Giede, Brigitte Giesen, Alfred Meffert, Andreas Syldatk, Johann F. Fues | 1988-08-02 |
| 4698065 | Liquid oxidation hair dye with phase stabilizer | Dieter Schrader | 1987-10-06 |