Patents by Inventor Renee Ann Tenzel

Renee Ann Tenzel 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).

  • Solid matrix system for transdermal drug delivery
    Patent number: 6149935
    Abstract: A matrix for containing drugs for transdermal delivery systems is disclosed. The matrix, formed of a skin-adhesive acrylate copolymer, attains high rates of drug delivery without the addition of drug delivery rate enhancers. In preferred embodiments the matrix is used to administer steroids, in particular estradiol. Water-soluble polymers may be added as well.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: November 21, 2000
    Assignee: Ortho-McNeil Pharmaceutical, Inc.
    Inventors: Chia-Ming Chiang, Renee Ann Tenzel
  • Solid matrix system for transdermal drug delivery
    Patent number: 5980932
    Abstract: A matrix for containing drugs for transdermal delivery systems is disclosed. The matrix formed of a skin-adhesive acrylate copolymer, attains high rates of drug delivery without the addition of drug delivery rate enhancers. In preferred embodiments the matrix is used to administer steroids, in particular estradiol.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: November 9, 1999
    Assignee: Cygnus, Inc.
    Inventors: Chia-Ming Chiang, Renee Ann Tenzel
  • Solid matrix system for transdermal drug delivery
    Patent number: 5770219
    Abstract: A matrix for containing drugs for transdermal delivery systems is disclosed. The matrix, formed of a skin-adhesive acrylate copolymer, attains high rates of drug delivery without the addition of drug delivery rate enhancers. In preferred embodiments the matrix is used to administer steroids, in particular estradiol. Water-soluble polymers may be added as well.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: June 23, 1998
    Assignee: Cygnus Inc.
    Inventors: Chia-Ming Chiang, Renee Ann Tenzel