Patents by Inventor Abe Widra

Abe Widra 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).

  • Alpha-keratose as a blood plasma expander and use thereof
    Patent number: 6746836
    Abstract: A plasma expander and blood substitute comprising a therapeutic amount if a solution of alpha-keratose, a soluble fraction of keratin, as an oncotic agent with nutrient growth properties suitable as a transport vehicle for the natural or synthetically formed elements of blood. The solution of alpha-keratose is non-antigenic, does not require blood typing, is free of disease producing viruses and may be stored indefinitely at ambient temperatures in the lyophilized state.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: June 8, 2004
    Inventor: Abe Widra
  • Hydrophilic biopolymeric copolyelectrolytes, and biodegradable wound dressing comprising same
    Patent number: 4570629
    Abstract: Hydrophilic biopolymeric copolyelectrolytes comprising (a) a water-soluble linear anionic protein polyelectrolyte component derived from keratin and (b) a water-soluble linear cationic biopolymer polyelectrolyte component derived from at least one biopolymer selected from the group consisting of collagen and a glucosaminoglycan. Hydrogel membranes formed from the copolyelectrolytes are useful as biodegradable dressings for denuded tissue wound sites.
    Type: Grant
    Filed: September 21, 1983
    Date of Patent: February 18, 1986
    Assignee: University of Illinois Foundation
    Inventor: Abe Widra