Patents by Inventor Klaus Lurrsen

Klaus Lurrsen 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).

  • Substituted guanidine derivatives
    Patent number: 4880932
    Abstract: A plant growth regulating compound of the formula ##STR1## in which R.sup.2 is an optionally substituted nitrogen heterocyclic radical,R.sup.3 is hydrogen, alkyl, cycloalkyl, alkenyl, alkinyl or aralkyl, andR.sup.4 is hydrogen, or if R.sup.3 is not hydrogen R.sup.4 may be hydroxyl or a variety of radicals, orR.sup.3 and R.sup.4 together may form a ring,or an acid adduct thereof.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: November 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Koichi Moriya, Theodor Pfister, Hans-Jochem Riebel, Ludwig Eue, Robert R. Schmidt, Klaus Lurrsen