Patents by Inventor Eric Goethals

Eric Goethals 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).

  • Patent number: 5175217
    Abstract: The invention relates to a method for the photochemical conversion of tachysterol compounds into previtamin D compounds and of trans-vitamin D compounds into cis-vitamin D compounds under the influence of radiation, by exposing the tachysterol compound and trans-vitamin D compound, respectively, dissolved in a suitable solvent system, in the presence of a polymeric photosensitizer consisting of a polymer chain ("backbone") comprising covalently bound sensitizers suitable for the photochemical conversion, to light with a wavelength of preferably between approx. 300 and approx.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: December 29, 1992
    Assignee: Duphar International Research B.V.
    Inventors: Eric Goethals, Sebastianus J. Halkes, Robert B. Koolstra
  • Patent number: 5035783
    Abstract: The invention relates to a method for the photochemical conversion of tachysterol compounds into previtamin D compounds and of trans-vitamin D compounds into cis-vitamin D compounds under the influence of radiation, by exposing the tachysterol compound and trans-vitamin D compound, respectively, dissolved in a suitable solvent system, in the presence of a polymeric photosensitizer consisting of a polymer chain ("backbone") comprising covalently bound sensitizers suitable for the photochemical conversion, to light with a wavelength of preferably between approx. 300 and approx.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: July 30, 1991
    Assignee: Duphar International Research B.V.
    Inventors: Eric Goethals, Sebastianus J. Halkes, Robert B. Koolstra