Issued Patents 1982
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363797 | Polyaspartic acid derivatives, their preparation and their use in cosmetic composition | Christos Papantoniou, Gerard Land, Serge Forestier | 1982-12-14 |
| 4348380 | Cosmetic compositions for the hair and skin based on copolymers having tertiary amine and/or quaternary ammonium functions | Christos Papantoniou, Jean Mondet | 1982-09-07 |
| 4339561 | N-(2,5-Dihydroxy-3,4,6-trimethyl-benzyl)-acrylamide and - methacrylamide polymers | Claude Mahieu, Christos Papantoniou | 1982-07-13 |
| 4324780 | Copolymers, process for preparing the same and cosmetic compositions containing the same | Claude Mahieu, Christos Papantoniou | 1982-04-13 |
| 4321348 | Copolymers of N-vinyl pyrrolidone and a vinylic, allylic or methallylic ester of a cyclic .alpha.- or .beta.-carboxylic acid; and cosmetic compositions containing the same | Christos Papantoniou, Guy Vanlerberghe, Jean Mondet | 1982-03-23 |
| 4314808 | Dye polymers, their preparation and their use in dye compositions | Gerard Lang, Serge Forestier | 1982-02-09 |