Patents Represented by Attorney Stephen D. Hammel

Find this attorney in the Justia Lawyer Directory

  • Gel bead composition for metal adsorption
    Patent number: 4978647
    Abstract: The invention is a gel bead comprising propylene glycol alginate and bone gelatin and is capable of removing metals such as Sr and Cs from solution without adding other adsorbents. The invention could have application to the nuclear industry's waste removal activities.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: December 18, 1990
    Assignee: United States Department of Energy
    Inventors: Charles D. Scott, Charlene A. Woodward, Charles H. Byers