Patents by Inventor Daniel Prowse

Daniel Prowse 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).

  • Gamma irradiation of collagen/mineral mixtures
    Patent number: 5035715
    Abstract: A biocompatible collagen/mineral composition which comprises a mixture of 2-40% reconstituted fibrillar atelopeptide collagen and 60-98% calcium phosphate mineral by weight, exclusive of water, is disclosed. The composition has a sterility assurance factor of at least as low as 10.sup.-6 and either a compressive modulus of at least 10 N/cm.sup.-2 or a tensile strength of about 3-12 N/cm.sup.-2.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: July 30, 1991
    Assignee: Collagen Corporation
    Inventors: Thomas L. Smestad, Daniel Prowse, George H. Chu, Diana M. Hendricks