Patents by Inventor Barend H. J. Hofstee

Barend H. J. Hofstee 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).

  • Separation of proteins by hydrophobic adsorption
    Patent number: 4000098
    Abstract: Separation of proteins from one another by passing an aqueous solution of a mixture of proteins through two or more bodies of matrices each having hydrophobic ligands covalently attached to it, the order of hydrophobicity being such that the protein mixture comes into contact with a first body having the least hydrophobic ligands, then with a second body having more hydrophobic ligands, etc., whereby the most highly hydrophobic proteins are adsorbed on the first (least hydrophobic) matrix, etc. in order of increasing hydrophobicity of the matrices and decreasing hydrophobicity of the proteins in the mixture.
    Type: Grant
    Filed: September 10, 1974
    Date of Patent: December 28, 1976
    Assignee: Palo Alto Medical Research Foundation
    Inventor: Barend H. J. Hofstee