Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5093502 | 14.alpha.,17.alpha.-dihydroxy-17.beta.-substituted steroids | Willem Johan Van Zoest, Pieter Gijsbert Weber, Arthur F. Marx | 1992-03-03 |
| 4267106 | New process for the preparation 17.beta.-hydroxy-3-oxo-17.alpha.-pregnene and pregnadiene-21-carboxylic acid .gamma.-lactones | Arthur F. Marx, Pieter Vellekoop | 1981-05-12 |