Patents by Inventor Dean Hseih

Dean Hseih 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: 5023252
    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 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 8, 1989
    Date of Patent: June 11, 1991
    Assignee: Conrex Pharmaceutical Corporation
    Inventor: Dean Hseih