Patents by Inventor Thomas Kuekenhoener

Thomas Kuekenhoener 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).

  • Preparation of formylcyclopropane
    Patent number: 5053550
    Abstract: Formylcyclopropane (I) ##STR1## is prepared by cyclization of 4-chlorobutanal by means of an aqueous mineral base by a method in which the reaction is carried out at 50.degree.-150.degree. C. in a liquid two-phase system consisting of an aqueous phase and a water-immiscible organic phase, and the formylcyclopropane is removed continuously from the reaction mixture.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: October 1, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Kuekenhoener, Norbert Goetz
  • Pest control with pyrimidines
    Patent number: 5047408
    Abstract: Methods of combating pests with substituted pyrimidines of the formula I ##STR1## where R.sup.1 is alkyl, cycloalyl, haloalkyl, alkoxy, alkylthio or substituted or unsubstituted aryl, R.sup.2 is halogen or hydrogen, A is oxygen, or sulfur, and X is CH or N, and pyrimidines of the general formula Ia ##STR2## where A is oxygen or sulfur and X is CH or N, and pesticides containing these compounds.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: September 10, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Schuetz, Siegbert Brand, Jochen Wild, Thomas Kuekenhoener, Peter Hofmeister, Christoph Kuenast