Patents by Inventor Heinz Günter Janneck

Heinz Günter Janneck 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 production of aryl alkyl ethers
    Patent number: 6624334
    Abstract: Aryl alkyl ethers can be produced by the reaction of hydroxyaromatics with an alcohol in the presence of a catalyst. This process achieves higher yields of aryl alkyl ethers and the formation of ring-alkylated products and dialkyl ethers is markedly reduced.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: September 23, 2003
    Assignees: Haarmann & Reimer GmbH, Bayer Aktiengesellschaft
    Inventors: Efim Biller, Edgar Fuhrmann, Detlef Hagena, Heinz Günter Janneck, Jörg Talbiersky, Lutz Walther