Patents by Inventor James Ellingboe

James Ellingboe 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).

  • Polysaccharide polyols
    Patent number: 4076930
    Abstract: Hydroxyalkyl ethers of hydroxyalkoxy polysaccharides are prepared by reacting the corresponding polysaccharide first with an epoxide in an aqueous alkaline medium, and then with an epoxide in the presence of a Lewis acid catalyst in a nonaqueous, nonalcoholic organic solvent. The resulting products are hydrophobic and strongly lipophilic, and are outstanding substrates for liquid-gel chromatography.
    Type: Grant
    Filed: January 29, 1971
    Date of Patent: February 28, 1978
    Inventors: James Ellingboe, Ernst Holger Nystrom, Jan Bertil Sjovall