Patents by Inventor Steven M. Schwartzman

Steven M. Schwartzman 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).

  • Purification of trehalose dimycolates
    Patent number: 4579945
    Abstract: A method of purifying crude trehalose dimycolates (TDM) is disclosed which comprises dissolving crude TDM in a solvent and then subjecting said solution to a low pressure silica gel column operating at a pressure between about 10 and 300 psi wherein the silica gel comprises particles in the range of between about 15 and 63 microns. The product of this process is also disclosed.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: April 1, 1986
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventors: Steven M. Schwartzman, Edgar E. Ribi
  • Stable composition and preparation thereof
    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
  • Refined detoxified endotoxin product
    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
  • Refined detoxified endotoxin product
    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