Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5106972 | 2-methyl-thio-4,6-diaryl-triazines | Kurt Burdeska | 1992-04-21 |
| 5084570 | Process for the preparation of 2-(2',4'-dihydroxyphenyl)-4,6-diaryl-s-triazines | Kurt Burdeska | 1992-01-28 |
| 4728337 | Assistant combination and use thereof as wool textile finishing agent | Heinz Abel, Rosemarie Topfl | 1988-03-01 |
| 4675180 | Process for preparing quaternary ammonium salts | — | 1987-06-23 |
| 4309316 | Process for the production of washing powders of stabilized or enhanced appearance which contain fluorescent whitening agents | Burkhart Lange, Suresh C. Agarwal, Werner Fringeli | 1982-01-05 |
| 4298490 | Process for the production of washing powders of stabilized or enhanced appearance which contain fluorescent whitening agents | Burkhart Lange, Suresh C. Agarwal, Werner Fringeli | 1981-11-03 |