Patents by Inventor Matthias J. Hoekstra

Matthias J. Hoekstra 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).

  • Injectable compositions for soft tissue augmentation
    Patent number: 5523291
    Abstract: Injectable implant compositions for soft tissue augmentation comprise elastin and collagen and a biocompatible carrier. An injectable implant composition for soft tissue augmentation is derived from the ligamentum nuchae which has been treated to remove non-collagenous and non-elastinous proteins. Methods of making an injectable implant composition for soft tissue augmentation from the ligamentum nuchae are described.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: June 4, 1996
    Assignee: Datascope Investment Corp.
    Inventors: Ernst Janzen, Matthias J. Hoekstra, Richard P. Dutrieux