Patents by Inventor Gerardus B. Staal

Gerardus B. Staal 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).

  • Compositions and method for controlling cockroaches
    Patent number: 5066482
    Abstract: The invention relates to novel compositions and methods for controlling cockroach populations using the (S)-(+) enantiomer of hydroprene.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: November 19, 1991
    Assignee: Sandoz Ltd.
    Inventors: Gustave K. Kohn, Robin R. Rudolph, Gerardus B. Staal, David L. Grant, Robert C. Pearce, Barbara A. Herbst
  • Substituted phenoxyethoxytetrahydropyran
    Patent number: 4359424
    Abstract: The compound, cyclopropylmethyl 4-(2-cyclopropylcarbonyloxyethoxy)benzoate, novel intermediates therefor, synthesis thereof, and the use of said compound for the control of pests.
    Type: Grant
    Filed: July 9, 1981
    Date of Patent: November 16, 1982
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Cyclopropylmethyl benzoates
    Patent number: 4304924
    Abstract: The compound, cyclopropylmethyl 4-(2-cyclopropylcarbonyloxyethoxy)benzoate, novel intermediates therefor, synthesis thereof, and the use of said compound for the control of pests.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: December 8, 1981
    Assignee: Zoecon Corporation
    Inventors: Olive A. Henrick, Gerardus B. Staal
  • Pyridine esters of cyclopropane-carboxylic acid
    Patent number: 4093622
    Abstract: Heterocyclic organic esters and thioesters characterized by the presence of one or two cyclopropane moieties, synthesis thereof, and compositions thereof for the control of mites and ticks.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: June 6, 1978
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Esters of cyclopropylalkanols
    Patent number: 4032564
    Abstract: Esters of cyclopropyl substituted alcohols, syntheses thereof, compositions thereof, and use for the control of mites and ticks.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: June 28, 1977
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Organic compositions
    Patent number: 4014922
    Abstract: Cyclopropyl substituted esters, syntheses thereof, compositions thereof, and use for the control of mites and ticks.
    Type: Grant
    Filed: July 25, 1975
    Date of Patent: March 29, 1977
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Cyclopropyl methyl esters
    Patent number: 4008258
    Abstract: Organic compounds characterized by a cyclopropanemethyl moiety, synthesis thereof, and compositions thereof for the control of mites.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: February 15, 1977
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Cyclopropane esters for the control of mites
    Patent number: 4000315
    Abstract: Esters of cyclopropyl substituted carboxylic acids, syntheses thereof, compositions thereof, and use for the control of mites and ticks.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: December 28, 1976
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Control of Acarina by esters of cyclopropane acids
    Patent number: 3995054
    Abstract: Methods and compositions for the control of Acarina employing esters of cyclopropane carboxylic acids described herein.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: November 30, 1976
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Control of mites with esters of cyclopropane substituted carboxylic acids
    Patent number: 3993773
    Abstract: Esters of cyclopropyl substituted carboxylic acids, syntheses thereof, compositions thereof, and use for the control of mites and ticks.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: November 23, 1976
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Cyclopropanemethyl esters of cinnamic acid and derivatives thereof
    Patent number: 3975429
    Abstract: Organic esters and thioesters characterized by the presence of a cyclopropane moiety, synthesis thereof, and compositions thereof for the control of mites and ticks.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: August 17, 1976
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Esters of cyclopropane alkanoic acids
    Patent number: 3969384
    Abstract: Esters of cyclopropyl substituted carboxylic acids, syntheses thereof, compositions thereof, and use for the control of mites and ticks.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: July 13, 1976
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Esters of cyclopropyl substituted carboxylic acids
    Patent number: 3960907
    Abstract: Esters of cyclopropyl substituted carboxylic acids, syntheses thereof, compositions thereof, and use for the control of mites and ticks.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: June 1, 1976
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Cyclopropane esters
    Patent number: 3957849
    Abstract: Esters of cyclopropyl substituted carboxylic acids, syntheses thereof, compositions thereof, and use for the control of mites and ticks.
    Type: Grant
    Filed: September 9, 1974
    Date of Patent: May 18, 1976
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal
  • Organic compositions
    Patent number: 3948961
    Abstract: Cyclopropyl substituted esters, syntheses thereof, compositions thereof, and use for the control of mites and ticks.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: April 6, 1976
    Assignee: Zoecon Corporation
    Inventors: Clive A. Henrick, Gerardus B. Staal