Patents by Inventor George R. Hemsworth

George R. Hemsworth 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).

  • Use of lipid amines formulated with fat or lipid emulsions as vaccine adjuvants
    Patent number: 4395394
    Abstract: N,N-higher alkyl-N',N'-bis(2-hydroxyethyl)-propanediamines and N,N-higher alkyl-xylylenediamines formulated with fat or lipid emulsions are useful as vaccine adjuvants of low toxicity. These compositions are useful in conjunction with known immunological substances in order to induce or enhance the immunogenic response. Preferred compositions employ N,N-higher alkyl-N',N'-bis(2-hydroxyethyl)propanediamines, particularly N,N-dioctadecyl-N',N'-bis(2-hydroxyethyl)-propanediamine in Intralipid.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: July 26, 1983
    Assignee: Pfizer Inc.
    Inventors: John S. Wolff, III, George R. Hemsworth, Keith E. Jensen
  • Lipid amines formulated with fat or lipid emulsions as vaccine adjuvants
    Patent number: 4310550
    Abstract: N,N-higher alkyl-N',N'-bis(2-hydroxyethyl)propanediamines and N,N-higher alkyl-xylylenediamines formulated with fat or lipid emulsions are useful as vaccine adjuvants of low toxicity. These compositions are useful in conjunction with known immunological substances in order to induce or enhance the immunogenic response. Preferred compositions employ N,N-higher alkyl-N',N'-bis(2-hydroxyethyl)propanediamines, particularly N,N-dioctadecyl-N',N'-bis(2-hydroxyethyl)propanediamine in Intralipid.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: January 12, 1982
    Assignee: Pfizer Inc.
    Inventors: John S. Wolff, III, George R. Hemsworth, Keith E. Jensen