Patents by Inventor Heinz Boesenberg

Heinz Boesenberg 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).

  • Benzoxazolyl- and benzothiazolyl-amino acids, their preparation and their use in plant protection
    Patent number: 4814459
    Abstract: Compounds of the formula ##STR1## in which X denotes O or S; R and R.sup.1 denote H, halogen, alkyl, alkoxy, CN, NO.sub.2 or CF.sub.3 ; R.sup.2 denotes H or alkyl; Y denotes an optionally substituted alkylene or phenylene group and Z denotes a carboxyl, carboxylate, carboxylic acid ester, carboxamide, nitrile or thioamide group, are suitable for reducing the phytotoxicity of herbicides in useful plants.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: March 21, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Heinz Boesenberg, Hilmar Mildenberger, Klaus Bauer, Hermann Bieringer
  • Herbicidal compounds
    Patent number: 4370489
    Abstract: Compounds of the formula ##STR1## in which R represents hydroxyl, (C.sub.1 -C.sub.10)alkoxy, (C.sub.1 -C.sub.6)alkylthio, (C.sub.2 -C.sub.4)alkenyloxy, cyclohexyloxy, cyclopentyloxy, phenoxy or phenylthio both optionally substituted once or twice with halogen, benzyloxy, benzylthio or -O-cat in which "cat" stands for the cation of an inorganic or organic base, have a very good effect on wild oat, barnyard grass, bristle grass and rayegrass in a much lower concentration than known analogous compounds.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: January 25, 1983
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Heinz Boesenberg, Gerhard Horlein, Helmut Kocher, Peter Langeluddeke
  • Preparation of polychlorcyclopentane and hexachlorcyclopentadiene
    Patent number: 3948742
    Abstract: Polychlorcyclopentane and hexachlorcyclopentadiene are prepared by reacting liquid chlorinated cyclopentane with gaseous chlorine in the presence of an electromagnetic radiation and optionally by a subsequent reaction of these higher chlorinated cyclopentanes with chlorine at a temperature of more than 300.degree.C to yield hexachlorcyclopentadiene.
    Type: Grant
    Filed: December 16, 1971
    Date of Patent: April 6, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Sigurd Rosinger, Heinz Boesenberg, Adolf Gaube