Patents by Inventor Robert P. Flath

Robert P. Flath 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).

  • Tamper resistant co-extruded dosage form containing an active agent and an adverse agent and process of making same
    Patent number: 10441547
    Abstract: The present invention relates to co-extruded pharmaceutical compositions and dosage forms including an active agent, such as an opioid agonist, and an adverse agent, such as an opioid antagonist. Such compositions and dosage forms are useful for preventing or discouraging tampering, abuse, misuse or diversion of a dosage form containing an active pharmaceutical agent, such as an opioid. The present invention also relates to methods of treating a patient with such a dosage form, as well as kits containing such a dosage form with instructions for using the dosage form to treat a patient.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: October 15, 2019
    Assignee: PURDUE PHARMA L.P.
    Inventors: Robert P. Flath, John K. Masselink
  • Tamper Resistant Co-Extruded Dosage Form Containing an Active Agent and an Adverse Agent and Process of Making Same
    Publication number: 20150140086
    Abstract: The present invention relates to co-extruded pharmaceutical compositions and dosage forms including an active agent, such as an opioid agonist, and an adverse agent, such as an opioid antagonist. Such compositions and dosage forms arc useful for preventing or discouraging tampering, abuse, misuse or diversion of a dosage form containing an active pharmaceutical agent, such as an opioid. The present invention also relates to methods of treating a patient with such a dosage form, as well as kits containing such a dosage form with instructions for using the dosage form to treat a patient.
    Type: Application
    Filed: October 14, 2014
    Publication date: May 21, 2015
    Inventors: Robert P. Flath, John K. Masselink
  • Tamper resistant co-extruded dosage form containing an active agent and an adverse agent and process of making same
    Patent number: 8883204
    Abstract: The present invention relates to co-extruded pharmaceutical compositions and dosage forms including an active agent, such as an opioid agonist, and an adverse agent, such as an opioid antagonist. Such compositions and dosage forms are useful for preventing or discouraging tampering, abuse, misuse or diversion of a dosage form containing an active pharmaceutical agent, such as an opioid. The present invention also relates to methods of treating a patient with such a dosage form, as well as kits containing such a dosage form with instructions for using the dosage form to treat a patient.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: November 11, 2014
    Assignee: Purdue Pharma L.P.
    Inventors: Robert P. Flath, John K. Masselink
  • TAMPER RESISTANT CO-EXTRUDED DOSAGE FORM CONTAINING AN ACTIVE AGENT AND AN ADVERSE AGENT AND PROCESS OF MAKING SAME
    Publication number: 20090022790
    Abstract: The present invention relates to co-extruded pharmaceutical compositions and dosage forms including an active agent, such as an opioid agonist, and an adverse agent, such as an opioid antagonist. Such compositions and dosage forms are useful for preventing or discouraging tampering, abuse, misuse or diversion of a dosage form containing an active pharmaceutical agent, such as an opioid. The present invention also relates to methods of treating a patient with such a dosage form, as well as kits containing such a dosage form with instructions for using the dosage form to treat a patient.
    Type: Application
    Filed: September 23, 2008
    Publication date: January 22, 2009
    Inventors: Robert P. Flath, John K. Masselink