Patents by Inventor Charles H. Tieman

Charles H. Tieman 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).

  • Tetrachloroethyl phosphorothioate soil insecticide
    Patent number: 4866045
    Abstract: A method for controlling insect larvae which inhabit the soil and feed on growing plants selected from rootworms, cutworms and wireworms which comprises applying to the soil habitat of the larvae an insecticidally-effective amount of 0,0-diethyl 0-(1,2,2,2-tetrachloroethyl)phosphorothioate.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: September 12, 1989
    Assignee: E. I. Du Pont Nemours and Company
    Inventor: Charles H. Tieman
  • Preparation of optically-active cyanomethyl esters
    Patent number: 4681947
    Abstract: Optically-active alpha-cyano esters are prepared by treating a non-symmetrical ketene with a racemic or an optically-active alpha-hydroxynitrile or with an aldehyde and cyanide ions in the presence of an optically-active amine catalyst.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: July 21, 1987
    Inventors: Donald W. Stoutamire, Charles H. Tieman
  • Preparation of cyanomethyl esters
    Patent number: 4582646
    Abstract: Stereoisomerically-enriched cyanomethyl esters are prepared by treating a non-symmetrical ketene with a racemic or optically-active alpha-hydroxynitrile in the absence of a catalyst or in the presence of an achiral tertiary amine catalyst.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: April 15, 1986
    Assignee: Shell Oil Company
    Inventors: Donald W. Stoutamire, Charles H. Tieman
  • Preparation of optically-active cyanomethyl esters
    Patent number: 4560515
    Abstract: Optically-active alpha-cyano esters are prepared by treating a non-symmetrical ketene with a racemic or an optically-active alpha-hydroxynitrile or with an aldehyde and cyanide ions in the presence of an optically-active amine catalyst.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: December 24, 1985
    Assignee: Shell Oil Company
    Inventors: Donald W. Stoutamire, Charles H. Tieman
  • Alpha-aminooxy isovalerate insecticides
    Patent number: 4537780
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is H or alkyl and R.sup.2 is alkyl, alkenyl or phenyl optionally substituted by halogen, (halo)alkyl or methylenedioxy, are useful as insecticides.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: August 27, 1985
    Assignee: Shell Oil Company
    Inventors: James R. Sanborn, Charles H. Tieman
  • Preparation of .alpha.-cyanobenzyl esters
    Patent number: 4360478
    Abstract: New .alpha.-halobenzyl esters, intermediates for .alpha.-cyanobenzyl pyrethroid esters, are prepared by treating a benzaldehyde derivative with a pyrethroid acid halide. The resulting .alpha.-halobenzyl ester is treated with a water-soluble compound capable of generating cyanide ions (CN.sup.-) to give the corresponding .alpha.-cyanobenzyl esters.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: November 23, 1982
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • .alpha.-Halobenzyl esters
    Patent number: 4360689
    Abstract: New .alpha.-halobenzyl esters, intermediates for .alpha.-cyanobenzyl pyrethroid esters, are prepared by treating a benzaldehyde derivative with a pyrethroid acid halide. The resulting .alpha.-halobenzyl ester is treated with a water-soluble compound capable of generating cyanide ions (CN.sup.-) to give the corresponding .alpha.-cyanobenzyl esters.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: November 23, 1982
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • Pesticidal 3-(2,3-dihydrobenzofuran-7-yl)-5-methoxy-1,3,4-oxadiazol-2(3H)-one
    Patent number: 4302592
    Abstract: 3-(2,3-dihydrobenzofuran-7-yl)-5-methoxy-1,3,4-oxadiazol-2-(3H)-one, useful as a pesticide.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: November 24, 1981
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • Stabilized cyandhydrin ester
    Patent number: 4299843
    Abstract: A pesticidal composition comprising a major amount of a nonracemic form of a pesticidally effective cyanohydrin ester or a solution of the non-racemic ester in a solvent and a stabilizing amount of an acid or acidic acting material.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: November 10, 1981
    Assignee: Shell Oil Company
    Inventors: Charles H. Tieman, Samuel B. Soloway
  • Polymeric insecticidal compositions of matter
    Patent number: 4232025
    Abstract: Reaction products of tetrahydro-2-(nitromethylene)-2H-1,3-thiazine and certain oxidized polysaccharides, useful as insecticides.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: November 4, 1980
    Assignee: Shell Oil Company
    Inventors: James R. Sanborn, Charles H. Tieman
  • 2,2'-(Sulfinylbis(nitromethylidyne))bis(tetrahydro-2H-1,3-thiazine)
    Patent number: 4225603
    Abstract: 2,2'-(Sulfinylbis(nitromethylidyne))bis(tetrahydro-2H-1,3-thiazine), useful as an insecticide.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: September 30, 1980
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • 2,2-(Thiobis(nitromethylidyne))bis(tetrahydro-2H-1,3-thiazine) and use
    Patent number: 4211780
    Abstract: 2,2'-(Thiobis(nitromethylidyne))bis(tetrahydro-2H-1,3-thiazine), useful as an insecticide.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: July 8, 1980
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • Preparation of .alpha.-cyanobenzyl esters
    Patent number: 4153626
    Abstract: .alpha.-Cyanobenzyl esters are prepared by treating an acid halide with a benzaldehyde cyanohydrin in the presence of a Lewis acid catalyst.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: May 8, 1979
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • 3-(5,6-Dihydro-4H-1,3-thiazin-2-yl)-3-nitro-2-propenoic acid
    Patent number: 4033953
    Abstract: The title compound, useful as an insecticide.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: July 5, 1977
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • 1,1,1-Trichloro-3-nitro-3-(tetrahydro-2H-1,3-thiazin-2-ylidene) -2-propanone
    Patent number: 4033952
    Abstract: The title compound, useful as an insecticide.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: July 5, 1977
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • 3,4-Dihydro-7-hydroxy-8-nitro-2H-pyrrolo(2,1-b)-(1,3)thiazin-6(7H)-one
    Patent number: 4033954
    Abstract: 3,4-Dihydro-7-hydroxy-8-nitro-2H-pyrrolo(2,1-b)-(1,3)thiazin-6(7H)-one, useful as an insecticide.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: July 5, 1977
    Assignee: Shell Oil Company
    Inventor: Charles H. Tieman
  • 2-(Nitromethylene)-1,3-diazacycloalkane insect control agents
    Patent number: 4002765
    Abstract: Use as insecticides of, and insecticidal compositions containing, certain 2-(nitromethylene)imidazolidines.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: January 11, 1977
    Assignee: Shell Oil Company
    Inventors: Charles H. Tieman, Willy D. Kollmeyer, Steven A. Roman
  • 2-(Nitromethylene)-1,3-diazepines
    Patent number: 3971774
    Abstract: Novel insecticidal 2-(nitromethylene)-1,3-diazacycloalkanes.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: July 27, 1976
    Assignee: Shell Oil Company
    Inventors: Charles H. Tieman, Willy D. Kollmeyer, Steven A. Roman
  • 2-(Nitromethylene)-hexahydropyrimidines
    Patent number: 3969354
    Abstract: Novel insecticidal 2-(nitromethylene)-1,3-diazacycloalkanes.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: July 13, 1976
    Assignee: Shell Oil Company
    Inventors: Charles H. Tieman, Willy D. Kollmeyer, Steven A. Roman
  • 2-(Nitromethylene)-1,3-diazacycloalkane insect control agents
    Patent number: 3948934
    Abstract: Insectidal 2-(nitromethylene)-1,3-diazacycloalkanes are disclosed.
    Type: Grant
    Filed: September 27, 1974
    Date of Patent: April 6, 1976
    Assignee: Shell Oil Company
    Inventors: Charles H. Tieman, Willy D. Kollmeyer, Steven A. Roman