Patents by Inventor Conrad H. Eugster

Conrad H. Eugster 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).

  • Biotenside solvents for pharmaceuticals and cosmetics
    Patent number: 5593691
    Abstract: New biotenside esters, processes for their preparation and their use as solvents and hydrotropic agents (coemulgators) in the preparation of spontaneously dispersible concentrates containing therapeutic or cosmetic agents are described.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: January 14, 1997
    Assignee: Marigen S.A.
    Inventors: Carl Eugster, Conrad H. Eugster, Walter Haldemann, Giorgio Rivara
  • Ultramicroemulsions from spontaneously dispersible concentrates containing xanthophyll esters and having antitumor activity
    Patent number: 5536504
    Abstract: Methods for treatment of tumours with ultramicroemulsions from spontaneously dispersible concentrates containing xanthophyll esters, and new esters with xanthophyll compounds and processes for their production are provided.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: July 16, 1996
    Assignee: Marigen S.A.
    Inventors: Carl Eugster, Conrad H. Eugster, Walter Haldemann, Giorgio Rivara
  • Biotenside esters and phosphatides with vitamin-D and vitamin-E compounds
    Patent number: 5502224
    Abstract: New biotenside esters and phosphatides formed with Vitamin-D and Vitamin-E compounds possessing a pronounced antitumor activity, processes for their production as well as for the preparation of concentrates and pharmaceutical compositions containing these new esters and phosphatides, and their use for treating tumors are described.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: March 26, 1996
    Assignee: Marigen, S.A.
    Inventors: Carl Eugster, Conrad H. Eugster, Walter Haldemann, Giorgio Rivara
  • Spontaneously dispersible concentrates and aqueous microemulsions with steryl retinates having anti-tumor activity
    Patent number: 5496813
    Abstract: There are described spontaneously dispersible agents containing sterolester and/or sterolphosphor compounds having a pronounced antitumour activity. Novel sterolesters and sterolphosphor compounds, their use for treating tumors, and processes for their preparation are disclosed.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: March 5, 1996
    Assignee: Marigen S.A.
    Inventors: Carl Eugster, Conrad H. Eugster, Walter Haldemann, Giorgio Rivara