Patents by Inventor Dean Hsieh

Dean Hsieh 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).

  • Transdermal and trans-membrane delivery compositions
    Patent number: 5731303
    Abstract: The rate of absorption of drugs across skin and other body membranes such as mucous membranes and the blood brain barrier is enhanced by adding to the drug composition a compound which enhances the rate. This compound may be a macrocyclic ester, diester, amide, diamide, amidine, diamidine, thioester, dithioester, thioamide, ketone or lactone. The macrocyclic ketone contains at least 12 carbon atoms.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: March 24, 1998
    Assignee: Conrex Pharmaceutical Corporation
    Inventor: Dean Hsieh