Patents by Inventor Herbert Leonhard

Herbert Leonhard 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).

  • Method for producing capsules containing an active ingredient and having an ultra-thin coating
    Publication number: 20040110898
    Abstract: A method for producing polymer capsules, pellets or droplets containing an active ingredient and having an ultra-thin coating is described, in which the active ingredient present in a dispersion with aqueous and organic phase is encapsulated in situ by means of heat-, plasma- or radiation-induced free-radical interfacial polymerization.
    Type: Application
    Filed: November 3, 2003
    Publication date: June 10, 2004
    Inventors: Michael Dreja, Wolfgang von Rybinski, Matthias Hof, Herbert Leonhard, Heinz Rehage