Patents by Inventor Rene Zurfluh

Rene Zurfluh 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).

  • Carbamic acid esters and use as pesticides
    Patent number: 4413010
    Abstract: Carbamic acid compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X and Y are as hereinafter set forth, processes for their preparation, pesticidal compositions containing one or more of the carbamic acid compounds as the active ingredient and methods for using the pesticidal compositions for the control of pests, particularly insects, mites and nematodes, are described.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: November 1, 1983
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Rene Zurfluh
  • 1,4-Bis-[(2-propynyloxy)-methyl] cyclohexane
    Patent number: 4270009
    Abstract: Compounds represented by the formulaHC.tbd.C--H.sub.2 C--O--H.sub.2 C--X--CH.sub.2 --O--CH.sub.2 --C.tbd.CHwherein X is phenylene or cyclohexylene as well as pesticidal compositions containing these compounds as the active ingredient, and methods for their use, are disclosed.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: May 26, 1981
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Silvia Dorn, Albert Pfiffner, Rene Zurfluh
  • Pesticidal 1,4-bis-[(-propynyloxy)-methyl]-benzene and 1,4-bis-[(2-propynyloxy)-methyl] cyclohexane
    Patent number: 4235932
    Abstract: Compounds represented by the formulaHC.tbd.C--H.sub.2 C--O--H.sub.2 C--X--CH.sub.2 --O--CH.sub.2 --C.tbd.CHwherein X is phenylene or cyclohexylene as well as pesticidal compositions containing these compounds as the active ingredient, and methods for their use, are disclosed.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: November 25, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Silvia Dorn, Albert Pfiffner, Rene Zurfluh
  • Cyclopropane carboxylic acid esters
    Patent number: 4162328
    Abstract: Cyclopropane carboxylic acid esters useful as pesticides and methods for their manufacture are disclosed.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: July 24, 1979
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Rene Zurfluh
  • Certain epoxy compounds in admixture as insect regulating agents
    Patent number: 4120974
    Abstract: There is disclosed herein a novel compound, 6,7-epoxy-1-(p-ethylphenoxy)-3,4,7-trimethyl-nonane, which synergizes the insect regulation activity of 6,7-epoxy-1-(p-ethylphenoxy)-3-ethyl-7-methyl-nonane.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: October 17, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Georg Frater, Albert Pfiffner, Milos Suchy, Rene Zurfluh
  • Pesticides
    Patent number: 4027033
    Abstract: Compounds represented by the formula ##STR1## wherein R.sub.1 is hydrogen or lower alkyl containing 1-4 carbons andR.sub.2 is a halo-lower alkanoyl or dihalo-lower alkanoyl, said lower alkanoyls each containing 2-6 carbonsUseful as pesticides are disclosed.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: May 31, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Peter Loeliger, Ulrich Schwieter, Albert Pfiffner, Milos Suchy, Rene Zurfluh
  • Novel benzofuranyl pest retardants
    Patent number: 4002647
    Abstract: Alkyl ethers of 2,3-dihydrobenzofuran where the alkyl chain may contain branched chains, unsaturated bonds, epoxy bridges, and may be substituted with halo, alkoxy, lower alkenyloxy, or lower alkynyloxy substituents useful in killing and preventing the proliferation of insects and other pests by upsetting their hormone balance.
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: January 11, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Peter Loeliger, Albert Pfiffner, Ulrich Schwieter, Milos Suchy, Rene Zurfluh
  • 2,4-Dodecadienoic acid esters and use for insecticides
    Patent number: 3983247
    Abstract: The present invention relates to polyene compounds, a process for their preparation, pesticidal compositions containing same, and a method of providing a locus free from pests using said pesticides, alone or in composition.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: September 28, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Ulrich Schwieter, Peter Loeliger, Albert Pfiffner, Milos Suchy, Rene Zurfluh
  • Propargyl esters of 7,11-substituted dodecadienoic acids
    Patent number: 3966780
    Abstract: Polyene esters, ethers, carbamates, thioesters, amides, carbonyls and nitriles, containing at least one pair of conjugated double bonds, which are useful in killing pests, such as insects, and preventing the proliferation of such pests by upsetting their hormonal balance.
    Type: Grant
    Filed: June 8, 1973
    Date of Patent: June 29, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Peter Loeliger, Albert Pfiffner, Ulrich Schwieter, Milos Suchy, Rene Zurfluh
  • Phenyl derivatives
    Patent number: 3957763
    Abstract: The present invention relates to phenyl derivatives, useful as insect hormones and with a method of providing a locus free of pests when using said phenyl derivatives or compositions containing same.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: May 18, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Madhukar Subraya Chodnekar, Ulrich Schwieter, Peter Loeliger, Albert Pfiffner, Milos Suchy, Rene Zurfluh