Patents by Inventor John W. Dohner

John W. Dohner 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).

  • Method for preventing crystal formation in a dispersion of a liquid in a matrix
    Patent number: 7169409
    Abstract: An improved method for the manufacture of transdermal drug delivery devices comprising liquid dispersions of a liquid in an aqueous or nonaqueous matrix is disclosed. More particularly, the invention relates to preventing the formation of a crystalline structure in such liquid dispersions by annealing films and laminates in-line immediately following film formation and/or lamination during the manufacture of these devices.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: January 30, 2007
    Assignee: Alza Corporation
    Inventors: John W. Dohner, Scott A. Bura
  • Method for coating skin piercing microprojections
    Publication number: 20040265365
    Abstract: An apparatus and method are provided for selectively applying an agent-containing liquid coating to extremely tiny skin piercing microprojections. The coating solution is applied to the skin piercing microprojections using a coating technique which selectively coats only predetermined portions the skin piercing microprojections. By the use of various photoresists and hydrophobic coatings, a defined and precise portion of the microprojections and/or the microprojection arrays can be coated with an agent formulation.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Inventors: Peter E. Daddona, Keith T. Chan, John W. Dohner, Rupal Ayer
  • Method for preventing crystal formation in a dispersion of a liquid in a matrix
    Publication number: 20040047893
    Abstract: An improved method for the manufacture of transdermal drug delivery devices comprising liquid dispersions of a liquid in an aqueous or nonaqueous matrix is disclosed. More particularly, the invention relates to preventing the formation of a crystalline structure in such liquid dispersions by annealing films and laminates in-line immediately following film formation and/or lamination during the manufacture of these devices.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 11, 2004
    Inventors: John W. Dohner, Scott A. Bura
  • Method for preventing crystal formation in a dispersion of a liquid in a matrix
    Patent number: 6569448
    Abstract: An improved method for the manufacture of transdermal drug delivery devices comprising liquid dispersions of a liquid in an aqueous or nonaqueous matrix is disclosed. More particularly, the invention relates to preventing the formation of a crystalline structure in such liquid dispersions by annealing films and laminates in-line immediately following film formation and/or lamination during the manufacture of these devices.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: May 27, 2003
    Assignee: Alza Corporation
    Inventors: John W. Dohner, Scott A. Bura, Richard E. Ford
  • METHOD FOR PREVENTING CRYSTAL FORMATION IN A DISPERSION OF A LIQUID IN A MATRIX
    Publication number: 20010038850
    Abstract: An improved method for the manufacture of transdermal drug delivery devices comprising liquid dispersions of a liquid in an aqueous or nonaqueous matrix is disclosed. More particularly, the invention relates to preventing the formation of a crystalline structure in such liquid dispersions by annealing films and laminates in-line immediately following film formation and/or lamination during the manufacture of these devices.
    Type: Application
    Filed: September 1, 1998
    Publication date: November 8, 2001
    Inventors: JOHN W. DOHNER, SCOTT A. BURA, RICHARD E. FORD
  • Method for preventing crystal formation in a dispersion of a liquid in a matrix
    Patent number: 6238700
    Abstract: An improved method for the manufacture of transdermal drug delivery devices comprising liquid dispersions of a liquid in an aqueous or nonaqueous matrix is disclosed. More particularly, the invention relates to preventing the formation of a crystalline structure in such liquid dispersions by annealing films and laminates in-line immediately following film formation and/or lamination during the manufacture of these devices.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: May 29, 2001
    Assignee: ALZA Corporation
    Inventors: John W. Dohner, Scott A. Bura, Richard E. Ford