Patents by Inventor Carl R. Harrell

Carl R. Harrell 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 soft tissue augmentation materials from the placenta and their method of manufacture
    Patent number: 5002071
    Abstract: Disclosed is a soft tissue augmentation material from human placenta homogenized to pass through a surgical needle, preferably a 30 gauge surgical needle, and cross-linking collagen molecules of the material by gamma irradiation. Also disclosed are methods of making the injectable soft tissue augmentation material and using it in human beings.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: March 26, 1991
    Assignee: Research Development Foundation
    Inventor: Carl R. Harrell