Patents by Inventor Johannes Joseph Schuitmaker

Johannes Joseph Schuitmaker 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).

  • Method of Preparing Porphyrin Derivatives, Porphyrin Derivatives, Uses Thereof and Pharmaceutical Compositions
    Publication number: 20080280934
    Abstract: Method of preparing a porphyrin derivative starting from a meso-substituted porphyrin compound. According to the invention, the meso-substituted porphyrin compound used is a meso-(2?-cyanovinyl)-substituted porphyrin compound, wherein said meso-(2?-cyanovinyl)-substituted porphyrin compound, in a form in which its porphyrin ring is complexed with a bivalent metal ion is converted, in the present of an acid for which 0<pKa<5 and an oxidizing agent; or in the presence of a Vilsmeier reagent, into a porphyrin derivative having a quinoline-ring system ring peri-condensed to the porphyrin ring.
    Type: Application
    Filed: December 20, 2004
    Publication date: November 13, 2008
    Inventors: Johannis Lugtenburg, Hendrikus Nicolaas Sebastiaan Van der Haas, Johannes Joseph Schuitmaker, Robertus Leendert Pieter De Jong