Patents by Inventor Paul S. Tremblay

Paul S. Tremblay 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).

  • Steroidal liposomes
    Patent number: 4721612
    Abstract: Methods and compositions are described for the preparation of lipid vesicles, the bilayers of which comprise a salt form of an organic acid derivative of a sterol such as the tris-salt form of a sterol hemisuccinate. The method is rapid, efficient, and does not require the use of organic solvents. The sterol hemisuccinate vesicles may be used to entrap compounds which are insoluble in aqueous solutions. Such preparations are especially useful for entrapping bioactive agents of limited solubility thus enabling administration in vivo.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: January 26, 1988
    Assignee: The Liposome Company, Inc.
    Inventors: Andrew S. Janoff, Mircea C. Popescu, Alan L. Weiner, Lois E. Bolcsak, Paul S. Tremblay