Patents Assigned to Sharpoint L.P.
  • Biodegradable polyamides for providing a controlled release therapeutic drug
    Patent number: 5068220
    Abstract: Biodegradable polyamides, useful as absorbable sutures and as controlled release binder materials, are prepared by condensing 4,4'-spirobibutyrolactone with a primary diamine, optionally in the presence of a nylon salt, leading to homopolymers containing lactam structural units, or to random copolymers.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: November 26, 1991
    Assignee: Sharpoint L.P.
    Inventors: David P. Vanderbilt, Donald R. Cowsar, Richard L. Dunn, James P. English
  • Biodegradable polyamides
    Patent number: 4950735
    Abstract: Biodegradable polyamides, useful as absorable sutures and as controlled release binder materials, are prepared by condensing 4,4'-spirobibutyrolactone with a primary diamine, optionally in the presence of a nylon salt, leading to homopolymers containing lactam structural units, or to random copolymers.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: August 21, 1990
    Assignee: Sharpoint L.P.
    Inventors: David P. Vanderbilt, Donald R. Cowsar, Richard L. Dunn, James P. English
  • Suture winding card
    Patent number: 4700833
    Abstract: A suture winding card comprising a base panel and a plurality of flaps extending from and foldable over the base panel to cover and secure a suture thread coil disposed thereon. One of the flaps includes a plurality of triangularly shaped flap portions which can be selectively folded to form a pocket for receiving the end of a suture needle.
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: October 20, 1987
    Assignee: Sharpoint L.P.
    Inventor: Andrea Smith