Patents by Inventor Agustin Alfredo Tomei

Agustin Alfredo Tomei 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).

  • Process for preparation of 1,2-diamino-cyclohexane-platinum (II) complexes
    Patent number: 8637692
    Abstract: The present invention is directed to a manufacturing process for 1,2-diamino-cyclohexane-platinum(II) complexes, specifically to a manufacturing process for oxaliplatin. The process is straightforward, economical and applicable to industrial production. It comprises the reaction of (DACH)PtCl2 with silver sulfate (Ag2SO4) and the subsequent reaction of the resulting Pt sulfate complex (DACH)Pt(aq)2SO4 with barium oxalate (BaC2O4) or an equimolar mixture of barium hydroxide and oxalic acid to yield oxaliplatin in high purity with a low silver and low nitrate content.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: January 28, 2014
    Assignee: Umicore AG & Co. KG
    Inventors: Néstor Pablo Cid, Miguel Julio Novas, Agustin Alfredo Tomei