Patents by Inventor Joerg Schiewe

Joerg Schiewe 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).

  • Process and apparatus for producing inhalable medicaments
    Patent number: 6663848
    Abstract: A method for crystallizing a substance, especially an inhalable medicament, comprising the following steps: (a) dissolving said substance in a solvent, to produce a solution of said substance, (b) producing a segmented stream which consists of alternating segments of said solution of the substance and of a transport medium, (c) introducing said segmented stream into the first end of a retention stretch, which retention stretch has a first end and a second end, so that said segmented stream passes from said first end to said second end of said retention stretch, and exits from the second end of the retention stretch, (d) cooling the retention stretch, to thereby bring about crystallization of the substance in the segments of solution, in the segmented stream, as said segmented stream passes through the retention stretch, and (e) separating the crystals of material from the segmented stream as it exits from the second end of the retention stretch.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: December 16, 2003
    Assignee: Boehringer Ingelheim Pharma KG
    Inventors: Joerg Schiewe, Bernd Zierenberg
  • Process and apparatus for producing inhalable medicaments
    Publication number: 20030175187
    Abstract: A method for crystallizing a substance, especially an inhalable medicament, comprising the following steps:
    Type: Application
    Filed: May 19, 2003
    Publication date: September 18, 2003
    Applicant: Beohringer Ingelheim Pharma KG
    Inventors: Joerg Schiewe, Bernd Zierenberg
  • Process and apparatus for producing inhalable medicaments
    Publication number: 20030015194
    Abstract: A method for crystallizing a substance, especially an inhalable medicament, comprising the following steps:
    Type: Application
    Filed: April 18, 2002
    Publication date: January 23, 2003
    Inventors: Joerg Schiewe, Bernd Zierenberg