Patents by Inventor Ferdinand Driessens

Ferdinand Driessens 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).

  • Biocements having improved compressive strength
    Patent number: 6495156
    Abstract: The invention describes biodegradable calcium phosphate cements, in particular mixtures of calcium phosphate-containing powders of different stoichiometric composition, the precipitated hydroxylapatite present being a cation-deficient hydroxylapatite of the formula 1, with the result that the mixtures have improved properties with regard to compressive strength.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: December 17, 2002
    Assignee: Merck Patent GmbH
    Inventors: Robert Wenz, Ferdinand Driessens
  • Biocements having improved compressive strength
    Publication number: 20020017220
    Abstract: The invention describes biodegradable calcium phosphate cements, in particular mixtures of calcium phosphate-containing powders of different stoichiometric composition, the precipitated hydroxylapatite present being a cation-deficient hydroxylapatite of the formula 1, with the result that the mixtures have improved properties with regard to compressive strength.
    Type: Application
    Filed: May 11, 2001
    Publication date: February 14, 2002
    Inventors: Robert Wenz, Ferdinand Driessens