Patents by Inventor Heinz Traussnig

Heinz Traussnig 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).

  • Extracting agents for poly-D(-)-3-hydroxybutyric acid
    Patent number: 4968611
    Abstract: Use of diols or acetalized triols, di- or tricarboxylic acid esters, mixtures of dicarboxylic acid esters or butyrolactone as extracting agents for obtaining pure polyesters or copolyesters containing 3-hydroxybutyric acid units.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: November 6, 1990
    Assignee: Petrochemie Danubia Gesellschaft m.b.H.
    Inventors: Heinz Traussnig, Engelbert Kloimstein, Hans Kroath, Robert Estermann