Patents by Inventor Hein Louis Klopping

Hein Louis Klopping 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).

  • Controlling fungal crop diseases with mixtures of methyl 2-benzimidazolecarbamate and certain specific fungicides
    Patent number: 4060624
    Abstract: Mixtures of methyl 2-benzimidazolecarbamate with tetramethylthiuramdisulfide, tetraethylthiuramdisulfide or zinc dimethyldithiocarbamate provide good control of many plant pathogenic fungi. These mixtures also prevent the selective multiplication of resistant strains of fungi in populations of fungi which are normally susceptible to control by methyl 2-benzimidazolecarbamate.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: November 29, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Hein Louis Klopping
  • Mixtures of methyl 2-benzimidazolecarbamate and ethylenebisdithio-carbamic acid salts as foliar fungicides
    Patent number: 4060625
    Abstract: Mixtures of methyl 2-benzimidazolecarbamate with the manganous or zinc salts of ethylenebisdithiocarbamic acid, i.e., maneb or zineb, are effective as foliar fungicides.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: November 29, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Hein Louis Klopping
  • Fungicidal cyclopropyl substituted 2-cyanoacetamide derivatives
    Patent number: 3984568
    Abstract: Compounds of the formula ##EQU1## whereinR is cyclopropyl or cyclopropylmethyl and R.sub.1 is alkyl of 1 or 2 carbon atoms are effective plant disease control agents.
    Type: Grant
    Filed: September 11, 1975
    Date of Patent: October 5, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Hein Louis Klopping
  • Fungicidal alkoxy substituted 2-cyanoacetamide derivatives
    Patent number: 3979518
    Abstract: Compounds of the formula ##EQU1## where R is CH.sub.3 OCH.sub.2 -- or CH.sub.3 O(CH.sub.2).sub.3 -- and R.sub.1 is alkyl of 1 or 2 carbon atoms are effective plant disease control agents.
    Type: Grant
    Filed: September 11, 1975
    Date of Patent: September 7, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Hein Louis Klopping