Patents by Inventor Adrianus Antonius Cornelius Van Wijk

Adrianus Antonius Cornelius Van Wijk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Diamine salts of carboxylic acids
    Patent number: 8461327
    Abstract: The present invention relates to a salt of a carboxylic acid with a diamine such as 2,2?-(ethylenedioxy)diethyl amine, 3,3?-(ethylenedioxy)dipropyl amine and 2,2?-oxybis(ethylamine) and a method of preparing such salts. Preferably the carboxylic acid is a fermentation product such as clavulanic acid, mycophenolic acid or pravastatin.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: June 11, 2013
    Assignee: DSM Sinochem Pharmaceuticals Netherlands B.V.
    Inventors: Robertus Mattheus De Pater, Adrianus Antonius Cornelius Van Wijk, Piotr Wnukowski