Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4656310 | Substituted triarylphosphonium derivatives | Werner Bollag, Gottlieb Ryser | 1987-04-07 |
| 4532355 | Substituted triaryl phosphonium derivatives | Werner Bollag, Gottlieb Ryser | 1985-07-30 |
| 4439629 | Extraction process for beta-carotene | — | 1984-03-27 |
| 4319048 | Certain 6-(3'-methoxyphenyl) derivatives of 2,4-hexadienal | Werner Bollag, Gottlieb Ryser | 1982-03-09 |
| 4267382 | 2,6-Dichloro-4-methoxy-5-methyl-benzene aldehydes | Werner Bollag, Gottlieb Ryser | 1981-05-12 |
| 4225527 | Polyene compounds | Werner Bollag, Gottlieb Ryser | 1980-09-30 |
| 4224244 | 9-Phenyl 5,6-dimethyl-nona-2,4,6,8 tetraenal or tetraenol derivatives | Werner Bollag, Gottlieb Ryser | 1980-09-23 |
| 4215215 | 9-Phenyl-nonate traene compounds | Werner Bollag, Gottlieb Ryser | 1980-07-29 |
| 4187247 | 9-Substituted phenyl-3,7-dimethyl-nona 2,4,6,8-tetraene compounds | Werner Bollag, Gottlieb Ryser | 1980-02-05 |