Patents by Inventor Karl Friehs

Karl Friehs 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).

  • EXPRESSION OF COLLAGEN PEPTIDE COMPONENTS IN PROKARYOTIC SYSTEMS
    Publication number: 20230399379
    Abstract: The present invention relates to methods for preparing hydroxylated collagen peptide components and to hydroxylated collagen peptide components, in particular hydroxylated collagen peptides, obtained from these methods.
    Type: Application
    Filed: May 5, 2021
    Publication date: December 14, 2023
    Inventors: Severin Wedde, Joe Max Risse, Karl Friehs, Martin Hahn, Benjamin Ludwig
  • Genetic vaccination device and process for forming an injection therefor
    Patent number: 6951613
    Abstract: There is disclosed a genetic vaccination device and a process for forming an injection solution therefor, the device comprising a syringe and canula coupled to a membrane adsorber having genetic material adsorbed thereon, and the process comprising eluting the genetic material from the membrane adsorber so as to form an injection solution containing the genetic material.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: October 4, 2005
    Assignee: Sartorius AG
    Inventors: Oscar-Werner Reif, Thomas Scheper, Karl Friehs
  • Method for the isolation of ccc plasmid DNA
    Patent number: 6664078
    Abstract: The present invention relates to the production of biomass for the isolation of ccc plasmid DNA comprising culturing a bacterial transformant in a bioreactor containing an antibiotic-free batch medium under batch-conditions and, at the end of the batch phase, feeding under feed-back conditions the portion of a feed-back medium after the rise of the concentration of dissolved oxigen above a threshold-set point. Said feed-back medium comprises besides a carbon source a magnesium salt, preferably in concentrations above 20 mM. Preferably, the bacterial transformant is harvested after the end of the culture and frozen or freeze-dried. Also preferred is that ccc plasmid DNA is, optionally directly, isolated after harvesting the bacteria.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: December 16, 2003
    Assignee: Qiagen GmbH
    Inventors: Torsten Schmidt, Karl Friehs, Erwin Flaschel, Martin Schleef
  • Genetic vaccination device and process for forming an injection therefor
    Publication number: 20030068354
    Abstract: There is disclosed a genetic vaccination device and a process for forming an injection solution therefor, the device comprising a syringe and canula coupled to a membrane adsorber having genetic material adsorbed thereon, and the process comprising eluting the genetic material from the membrane adsorber so as to form an injection solution containing the genetic material.
    Type: Application
    Filed: October 4, 2002
    Publication date: April 10, 2003
    Inventors: Oscar-Werner Reif, Thomas Scheper, Karl Friehs