Patents by Inventor Emil Schwan

Emil Schwan 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).

  • NEW ALFENTANIL COMPOSITION FOR THE TREATMENT OF ACUTE PAIN
    Publication number: 20180214437
    Abstract: There is provided pharmaceutical compositions for the treatment of pain e.g. short-term pain, which compositions comprise a mixture comprising: (a) microparticles of alfentanil, or a pharmaceutically acceptable salt thereof, which microparticles are presented on the surfaces of larger carrier particles; (b) a water-soluble weak base; and (c) a compound which is a weak acid, which acid is presented in intimate mixture with the microparticles of alfentanil or salt thereof. The composition may further comprise a disintegrant. The acid is preferably citric acid.
    Type: Application
    Filed: September 11, 2017
    Publication date: August 2, 2018
    Inventors: Anders Pettersson, Barbro Johansson, Emil Schwan
  • Alfentanil composition for the treatment of acute pain
    Patent number: 9782396
    Abstract: There is provided pharmaceutical compositions for the treatment of pain e.g. short-term pain, which compositions comprise a mixture comprising: (a) microparticles of alfentanil, or a pharmaceutically acceptable salt thereof, which microparticles are presented on the surfaces of larger carrier particles; (b) a water-soluble weak base; and (c) a compound which is a weak acid, which acid is presented in intimate mixture with the microparticles of alfentanil or salt thereof. The composition may further comprise a disintegrant. The acid is preferably citric acid.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: October 10, 2017
    Assignee: Orexo AB
    Inventors: Anders Pettersson, Barbro Johansson, Emil Schwan
  • ALFENTANIL COMPOSITION FOR THE TREATMENT OF ACUTE PAIN
    Publication number: 20170071927
    Abstract: There is provided pharmaceutical compositions for the treatment of pain e.g. short-term pain, which compositions comprise a mixture comprising: (a) microparticles of alfentanil, or a pharmaceutically acceptable salt thereof, which microparticles are presented on the surfaces of larger carrier particles; (b) a water-soluble weak base; and (c) a compound which is a weak acid, which acid is presented in intimate mixture with the microparticles of alfentanil or salt thereof. The composition may further comprise a disintegrant. The acid is preferably citric acid.
    Type: Application
    Filed: April 26, 2016
    Publication date: March 16, 2017
    Inventors: Anders Pettersson, Barbro Johansson, Emil Schwan
  • Alfentanil composition for the treatment of acute pain
    Patent number: 9345698
    Abstract: There is provided pharmaceutical compositions for the treatment of pain e.g. short-term pain, which compositions comprise a mixture comprising: (a) microparticles of alfentanil, or a pharmaceutically acceptable salt thereof, which microparticles are presented on the surfaces of larger carrier particles; (b) a water-soluble weak base; and (c) a compound which is a weak acid, which acid is presented in intimate mixture with the microparticles of alfentanil or salt thereof. The composition may further comprise a disintegrant. The acid is preferably citric acid.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: May 24, 2016
    Assignee: Orexo AB
    Inventors: Anders Pettersson, Barbro Johansson, Emil Schwan
  • ALFENTANIL COMPOSITION FOR THE TREATMENT OF ACUTE PAIN
    Publication number: 20150133501
    Abstract: There is provided pharmaceutical compositions for the treatment of pain e.g. short-term pain, which compositions comprise a mixture comprising: (a) microparticles of alfentanil, or a pharmaceutically acceptable salt thereof, which microparticles are presented on the surfaces of larger carrier particles; (b) a water-soluble weak base; and (c) a compound which is a weak acid, which acid is presented in intimate mixture with the microparticles of alfentanil or salt thereof. The composition may further comprise a disintegrant. The acid is preferably citric acid.
    Type: Application
    Filed: July 15, 2014
    Publication date: May 14, 2015
    Inventors: Anders Pettersson, Barbro Johansson, Emil Schwan
  • Alfentanil composition for the treatment of acute pain
    Patent number: 8815911
    Abstract: There is provided pharmaceutical compositions for the treatment of pain e.g. short-term pain, which compositions comprise a mixture comprising: (a) microparticles of alfentanil, or a pharmaceutically acceptable salt thereof, which microparticles are presented on the surfaces of larger carrier particles; (b) a water-soluble weak base; and (c) a compound which is a weak acid, which acid is presented in intimate mixture with the microparticles of alfentanil or salt thereof. The composition may further comprise a disintegrant. The acid is preferably citric acid.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: August 26, 2014
    Assignee: Orexo AB
    Inventors: Anders Pettersson, Barbro Johansson, Emil Schwan