Patents by Inventor Ronald Dersch

Ronald Dersch 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).

  • Publication number: 20120083037
    Abstract: The invention relates to a non-viral transfection agent comprising polymer/nucleic acid complexes and nanofibers, wherein the polymer/nucleic acid complexes are composed of at least one nucleic acid and at least one cationic polymer. The nanofibers carry the polymer/nucleic acid complexes, wherein the non-viral transfection agent is advantageously produced by means of electrospinning. The cationic polymer is favorably a polyimine or polyethyleneimine and can be modified with one or more hydrophilic polymers coupled thereto. It can also be advantageous to couple the cationic polymer with one or more carbohydrates and/or with a receptor-specific ligand. The nucleic acid is a DNA or an RNA, or a DNA or RNA derivative, advantageously a therapeutically active nucleic acid. The nanofibers are composed of biodegradable, biocompatible polymers. The nanofibers or the entire transfection agent can be provided with a polymer coating.
    Type: Application
    Filed: January 29, 2010
    Publication date: April 5, 2012
    Applicant: Philipps Universitat Marburg
    Inventors: Joachim H. Wendorff, Achim Aigner, Ronald Dersch, Sabrina Höbel, Markus Rudisile
  • Publication number: 20080213590
    Abstract: The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method and a device for the production of supports of this type in a charged or empty state. The method and device use electrospinning technology.
    Type: Application
    Filed: May 30, 2005
    Publication date: September 4, 2008
    Inventors: Andreas Greiner, Hans E. Hummel, Joachim H. Wendorff, Matthias Becker, Ronald Dersch