Patents by Inventor John Desmond Davies

John Desmond Davies 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: 6187337
    Abstract: A particulate support matrix, and a dosage form made therefrom, and processes for making such support matrices and dosage forms, which disintegrate or dissolve in a matter of just a few seconds once placed into an aqueous environment. First, a porous particulate powder matrix comprising at least two polymeric components which will serve as the dosage form matrix is produced. The polymeric components have different solubilities. In a second step, a pharmaceutical compound, for example an antihistamine, decongestant, or antibiotic is combined with the powder. Other additives may also be added to the mixture. In a third step the mixture is formed into a dosage form. Finally, in a fourth step, a coating may be formed upon the outer surface of the dosage form to enhance the intactness and durability of the dosage form.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: February 13, 2001
    Assignees: The Board of Regents of the University of Oklahoma, Janssen Pharmaceutica
    Inventors: Loyd V. Allen, Bingnan Wang, John Desmond Davies
  • Patent number: 6066337
    Abstract: A particulate support matrix, and a dosage form made therefrom, and processes for making such support matrices and dosage forms, which disintegrate or dissolve in a matter of just a few seconds once placed into an aqueous environment. First, a porous particulate powder matrix which will serve as the dosage form matrix is produced. In a second step, the pharmaceutical, for example an antihistamine, decongestant, or antibiotic is combined with the powder. Other additives may also be added to the mixture. In a third step the mixture is formed into a dosage form. Finally, in a fourth step, a coating may be formed upon the outer surface of the dosage form to enhance the intactness and durability of the dosage form.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: May 23, 2000
    Assignee: The Board of Regents of the University of Oklahoma and Janssen Pharmaceutica, Inc.
    Inventors: Loyd V. Allen, Bingnan Wang, John Desmond Davies
  • Patent number: 5807576
    Abstract: The present invention comprises a tablet, and method for making such, which disintegrates or dissolves in a matter of just a few seconds once placed into the oral cavity. Generally, the method of the present invention comprises up to four steps. First, a porous particulate powder which will serve as the tablet support matrix is produced. In the second step, the pharmaceutical, for example an antihistamine, decongestant, or antibiotic is combined with the powder. Other additives may also be added to the mixture. In the third step the mixture is formed into a tablet. Finally, in the fourth step, a coating may be applied to the outer surface of the tablet to enhance the intactness and durability of the tablet.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: September 15, 1998
    Assignees: The Board of Regents of the University of Oklahoma, Janssen Pharmaceutica, Inc.
    Inventors: Loyd V. Allen, Jr., Bingnan Wang, John Desmond Davies
  • Patent number: 5776491
    Abstract: The present invention concerns a particulate support matrix, a solid dosage form made therefrom, and processes for making such support matrices and dosage forms, which disintegrate or dissolve in a matter of just a few seconds once placed into the oral cavity.First, a porous particulate powder which will serve as the tablet support matrix is produced. In the second step, the pharmaceutical, for example an antihistamine, decongestant, or antibiotic is combined with the powder. Other additives may also be added to the mixture. In the third step the mixture is formed into a tablet. Finally, in the fourth step, a coating may be applied to the outer surface of the tablet to enhance the intactness and durability of the tablet.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 7, 1998
    Assignees: The Board of Regents of the University of Oklahoma, Janssen Pharmaceutica, Inc.
    Inventors: Loyd V. Allen, Jr., Bingnan Wang, John Desmond Davies