Patents by Inventor John L. Cantrell

John L. Cantrell 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).

  • Patent number: 4877611
    Abstract: Vaccines are provided which are composed of (a) non-toxic and highly effective adjuvants obtained from microbial sources, together with (b) tumor antigens. A wide variety of antigens can be employed in the vaccines and include, antigens obtained from tumors or cultures of tumor cells, such as ovarian cancers, melanomas, colorectal cancers, pancreatic cancers, renal cancers and the like. By adding tumor antigens to potent but non-toxic immunostimulants, a protective and lasting tumor immunity can be obtained.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: October 31, 1989
    Assignee: Ribi ImmunoChem Research Inc.
    Inventor: John L. Cantrell
  • Patent number: 4806352
    Abstract: An immunological adjuvant is provided which enhances the immune response against antigens, and accordingly is useful in vaccines. The adjuvant system is comprised of (1) a lipid emulsion system containing a metabolizable oil, a low molecular weight polyol and lecithin and (2) at least one refined detoxified bacterial biological adjuvant.
    Type: Grant
    Filed: April 15, 1986
    Date of Patent: February 21, 1989
    Assignee: Ribi ImmunoChem Research Inc.
    Inventor: John L. Cantrell
  • Patent number: 4803070
    Abstract: An immunological adjuvant for polysaccharide vaccines is provided whereby polysaccharide antigens are rendered more immunogenic and thus stimulate more antibody production including an IgG response and immunological memory. The adjuvant is comprised of (1) either (A) an emulsion system containing a metabolizable oil, a low molecular weight polyol and lecithin, or (B) an oil-in-water emulsion system containing a light hydrocarbon non-biodegradable oil or a biodegradable oil, and a detergent; and (2) a refined detoxified endotoxin. The adjuvant can optionally also contain trehalose dimycolate.
    Type: Grant
    Filed: April 15, 1986
    Date of Patent: February 7, 1989
    Assignee: Ribi ImmunoChem Research Inc.
    Inventors: John L. Cantrell, Jon A. Rudbach
  • Patent number: 4663306
    Abstract: A pharmaceutical composition comprising a purified pyridine-soluble extract of a microorganism and a refined detoxified endotoxin which is effective in producing an immunological response in warm blooded animals and humans. Methods of using the composition for these purposes are also disclosed.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: May 5, 1987
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventor: John L. Cantrell
  • Patent number: 4613504
    Abstract: A purified pyridine-soluble extract of a microorganism is disclosed. The extract in a pharmaceutically acceptable medium is useful as an anti-animal tumor agent in the treatment of animals.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: September 23, 1986
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventor: John L. Cantrell
  • Patent number: 4520019
    Abstract: A stable composition containing cell wall skeleton (CWS) and trehalose dimycolates (TDM) which may be effectively reconstituted after lyophilization. The composition is useful in the treatment of various cancerous tumors in animals without side effects. Also disclosed is a method of producing the composition and a method of treating cancerous tumors in animals using said composition.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: May 28, 1985
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventors: Edgar E. Ribi, John L. Cantrell, Steven M. Schwartzman
  • Patent number: 4505900
    Abstract: A pharmaceutical composition comprising refined detoxified endotoxin, cell wall skeleton and trehalose dimycolate is disclosed which is effective for the treatment of cancerous tumors. Methods of using the composition for these purposes are also disclosed.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: March 19, 1985
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventors: Edgar E. Ribi, Steven M. Schwartzman, John L. Cantrell
  • Patent number: 4505899
    Abstract: A pharmaceutical composition comprising refined detoxified endotoxin, trehalose dimycolate, and an acetone precipitated by-product of endotoxic glycolipids extracted with chloroform-methanol (ACP) is disclosed which is useful for the treatment of cancerous tumors. Methods of using the composition for these purposes are also disclosed.
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: March 19, 1985
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventors: Edgar E. Ribi, John L. Cantrell
  • Patent number: 4505903
    Abstract: A pharmaceutical composition is disclosed comprising a purified pyridine-soluble extract obtained from a microorganism which contains between about 7 and 20% by weight of protein, between about 10 and 16% by weight of sugar, and between about 35 and 55% by weight of fatty acids which when combined with cell wall skeleton and trehalose dimycolate in a pharmaceutically acceptable medium is useful as an anti-animal tumor agent in the treatment of animals.
    Type: Grant
    Filed: April 17, 1984
    Date of Patent: March 19, 1985
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventor: John L. Cantrell
  • Patent number: 4504473
    Abstract: A pharmaceutical composition is disclosed comprising a purified pyridine-soluble extract obtained from microorganism which contains between about 7 and 20% by weight of protein, between about 10 and 16% by weight of sugar, and between about 35 and 55% by weight of fatty acids which when combined with trehalose dimycolate and an acetone precipitated by-product of endotoxic glycol lipids extracted with chloroform-methanol in a pharmaceutically acceptable medium is useful as an anti-animal tumor agent in the treatment of animals.
    Type: Grant
    Filed: April 17, 1984
    Date of Patent: March 12, 1985
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventor: John L. Cantrell
  • Patent number: 4503048
    Abstract: A method of producing a purified pyridine-soluble extract of a microorganism is disclosed which contains between about 7 and 20% by weight of protein, between about 10 and 16% by weight of sugar, and between about 35 and 55% by weight of fatty acids. The extract when combined with cell wall skeleton in a pharmaceutically acceptable medium is useful as an anti-tumor agent in the treatment of animals.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: March 5, 1985
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventor: John L. Cantrell
  • Patent number: 4436728
    Abstract: A pharmaceutical composition comprising refined detoxified endotoxin, cell wall skeleton and trehalose dimycolate is disclosed which is effective for the treatment of cancerous tumors. Methods of using the composition for these purposes are also disclosed.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: March 13, 1984
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventors: Edgar E. Ribi, Steven M. Schwartzman, John L. Cantrell