Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4725676 | 5-(3,5-disubstituted phenylazo)-2-hydroxybenzene-acetic acids and salts and lactones thereof having a potentially inhibitory effect on 15-hydroxy-prostaglandin dehydrogenase | Alf Nygren | 1988-02-16 |
| 4695648 | Novel arylacetic acid derivatives | Tamara Agback, Alf Nygren | 1987-09-22 |
| 4628083 | 2-hydroxy-5-(arylazo)-benzene alkanoic acids | — | 1986-12-09 |
| 4591584 | Azo-bis-salicylic acid and salt thereof, to treat inflammatory conditions of the intestine | — | 1986-05-27 |
| 4559330 | Use of 3,3'-azo-bis-(6-hydroxy benzoic acid) as a drug and pharmaceutical compositions containing the same | Tore Natvig, Sidney C. Truelove | 1985-12-17 |
| 4528367 | Method and intermediates for preparing high purity 3,3'-azo-bis-(6-hydroxy benzoic acid) | Alf Nygren | 1985-07-09 |