Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4724137 | s-Triazine derivatives and their use as sun screen agents | Udo Hoppe, Paul Naegele, Roland Martin | 1988-02-09 |
| 4617390 | S-triazine derivatives | Udo Hoppe, Paul Naegele, Roland Martin | 1986-10-14 |
| 4551512 | Water-soluble polymers having a low hygroscopicity | Ferdinand Straub, Axel Sanner, Siegfried Lang | 1985-11-05 |
| 4438094 | Cosmetic formulations containing oxyethylated diphenylamines as sun screen agents | Knut Oppenlaender, Rainer Strickler, Paul Naegele | 1984-03-20 |
| 4433112 | Preparation of a polyvinylpyrrolidone by heat treatment of an aqueous solution of a conventional polyvinylpyrrolidone | Ferdinand Straub, Heinrich Hartmann, Paul Naegele | 1984-02-21 |
| 4399297 | Polyalkoxycarbinol cinnamates and protective sun agents containing these compounds | Frank Thoemel, Kurt Schneider, Paul Naegele | 1983-08-16 |
| 4330451 | Preparation of a polyvinylpyrrolidone by heat treatment of an aqueous solution of a conventional polyvinylpyrrolidone | Ferdinand Straub, Heinrich Hartmann, Paul Naegele | 1982-05-18 |