Johannes Antonius Maria Hamersma

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Patents Grantslast 30 patents

Information Patent Grant
17-spiromethylene steroids
- Patent number 5,854,235
- Issue date Dec 29, 1998
- Akzo Nobel N.V.
- Johannes Antonius Maria Hamersma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Steroids with a 17-spiromethylene lactone or lactol group
- Patent number 5,741,786
- Issue date Apr 21, 1998
- Akzo Nobel N.V.
- Johannes Antonius Maria Hamersma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
17-spiromethylene steroids
- Patent number 5,712,264
- Issue date Jan 27, 1998
- Akzo Nobel N.V.
- Johannes Antonius Maria Hamersma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
17-spirofuran-3'-ylidene steroids
- Patent number 5,292,878
- Issue date Mar 8, 1994
- Akzo nv
- Johannes A. M. Hamersma
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
(11beta, 17alpha)-11-(4-(2-11C-ACETYL)PHENYL)-17,23-EPOXY-19,24-DIN...
- Publication number 20130272956
- Publication date Oct 17, 2013
- Franciscus Theodorus Leonardus Brands
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE