Patents by Inventor Leonard Jurd

Leonard Jurd 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).

  • Polybutylbenzylphenols and benzyl-3,4-methylenedioxbenzenes in insect population control
    Patent number: 4482728
    Abstract: Certain polybutylbenzylphenols and benzyl-3,4-methylenedioxybenzenes are useful for insect control especially as insect chemosterilants and oviposition inhibitors. The benzyl-3,4-methylenedioxybenzenes also find utility as growth inhibitors for mosquito larvae.
    Type: Grant
    Filed: April 20, 1982
    Date of Patent: November 13, 1984
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Dibutylorthobenzylmethoxybenzenes and dibutylorthocinnamylmethoxybenzenes as mosquito larvae growth inhibitors
    Patent number: 4391828
    Abstract: Novel dibutylorthobenzylmethoxybenzenes having the structure ##STR1## wherein R is hydrogen, lower alkyl or lower alkoxy and novel dibutylorthocinnamylmethoxybenzenes are disclosed as growth inhibitors for mosquito larvae.
    Type: Grant
    Filed: April 20, 1982
    Date of Patent: July 5, 1983
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Polybutylbenzylphenols and benzyl-3,4-methylenedioxybenzenes in insect population control
    Patent number: 4357344
    Abstract: Certain polybutylbenzylphenols and benzyl-3,4-methylenedioxybenzenes are useful for insect control especially as insect chemosterilants and oviposition inhibitors. The benzyl-3,4-methylenedioxybenzenes also find utility as growth inhibitors for mosquito larvae.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: November 2, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Polybutylbenzylphenols and benzyl-3,4-methylenedioxybenzenes in insect population control
    Patent number: 4342777
    Abstract: Certain polybutylbenzylphenols and benzyl-3,4-methylenedioxybenzenes are useful for insect control especially as insect chemosterilants and oviposition inhibitors. The benzyl-3,4-methylenedioxybenzenes also find utility as growth inhibitors for mosquito larvae.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: August 3, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Method of inhibiting and/or eradicating marine fungal growth with obtusastyrene
    Patent number: 4133862
    Abstract: Marine fungal growth is inhibited and/or eradicated in wood by contacting e wood with obtusastyrene whose formula is: ##STR1##
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: January 9, 1979
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John D. Bultman, Donald D. Ritchie, Leonard Jurd
  • Growth inhibitors for mosquito larvae
    Patent number: 4082814
    Abstract: Poly-t-butyl-cinnamyl phenols and poly-t-butyl-dihydrocinnamyl phenols are disclosed to be useful for inhibiting the growth of mosquito larvae, thus providing means for controlling mosquito populations.
    Type: Grant
    Filed: April 27, 1976
    Date of Patent: April 4, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Polybutyl-2-cinnamylphenols as insect anti-procreants
    Patent number: 4049722
    Abstract: New polybutyl-2-cinnamylphenols, particularly 4,6-di-t-butyl-2-cinnamylphenol, are useful for insect control and especially as insect chemosterilants and oviposition inhibitors.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: September 20, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Process for inhibiting the deterioration of wood due to marine boring organisms via the use of dibutylbenzylphenol
    Patent number: 4029818
    Abstract: Substances, particularly wood, which are normally subject to deterioration due to marine borers are preserved by applying to the substance a dibutylbenzylphenol.
    Type: Grant
    Filed: April 9, 1976
    Date of Patent: June 14, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Leonard Jurd, John Dale Bultman
  • Control of marine borer attack on wood
    Patent number: 4012529
    Abstract: Substances, particularly wood, which are normally subject to deterioration due to marine borers are preserved by applying to the substance certain 4-(3-phenylpropenylidene)-2,5-cyclohexadieneones substituted at position 5 with substituents selected from the group consisting of lower alkyl, lower alkoxy, and hydrogen, and at position 2 with substituents selected from the group consisting of hydroxyl and lower alkoxyl.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: March 15, 1977
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: John Dale Bultman, Leonard Jurd, Ruth D. Turner
  • Repellents for the confused flour beetle
    Patent number: 3993782
    Abstract: Alkyl-substituted 2-benzylphenols are disclosed to be useful for repelling the confused flour beetle (Tribolium confusum).
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: November 23, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Mosquito larvicide
    Patent number: 3972897
    Abstract: Limonene (or alpha-pinene) is condensed with sesamol under aqueous acidic conditions to produce a mixture of two novel compounds which are useful as mosquito larvicides.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: August 3, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Kenneth L. Stevens, Leonard Jurd
  • Certain cinnamyl phenols as growth inhibitors for mosquito larvae
    Patent number: 3973040
    Abstract: Poly-t-butyl-cinnamyl phenols and poly-t-butyl-dihydrocinnamyl phenols are disclosed to be useful for inhibiting the growth of mosquito larvae, thus providing means for controlling mosquito populations.
    Type: Grant
    Filed: July 8, 1975
    Date of Patent: August 3, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Cinnamyl-sesamol derivatives as insect chemosterilants
    Patent number: 3968234
    Abstract: New cinnamyl-sesamol derivatives, for example, 3,4-methylenedioxy-cinnamyloxybenzene, 2-methoxy-4,5-methylenedioxycinnamylbenzene, 2-ethoxy-4,5-methylenedioxy-cinnamylbenzene, and 2-allyloxy-4,5-methylenedioxy-cinnamylbenzene are useful for insect control, particularly as insect chemosterilants.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: July 6, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Polybutyl-2-cinnamylphenols as insect anti-procreants
    Patent number: 3959489
    Abstract: New polybutyl-2-cinnamylphenols, particularly 4,6-di-t-butyl-2-cinnamylphenol, are useful for insect control and especially as insect chemosterilants and oviposition inhibitors.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: May 25, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Mosquito larvicide
    Patent number: 3954991
    Abstract: Limonene (or alpha-pinene) is condensed with sesamol under aqueous acidic conditions to produce a mixture of two novel compounds which are useful as mosquito larvicides.
    Type: Grant
    Filed: February 27, 1975
    Date of Patent: May 4, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Kenneth L. Stevens, Leonard Jurd
  • Mixture of cinnamylphenols and normally spoilable substance
    Patent number: 3951820
    Abstract: Substances which are subject to microbial spoilage are preserved by addition of a cinnamyl phenol, e.g., 2-cinnamyl-phenol, 4-cinnamyl-phenol, 2-methoxy-4-cinnamyl-phenol, 2-cinnamyl-5-methoxy-quinol, etc.
    Type: Grant
    Filed: February 21, 1973
    Date of Patent: April 20, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Leonard Jurd, A. Douglas King, Jr., William L. Stanley
  • Alkylcinnamylphenols as mosquito larvicides
    Patent number: 3946047
    Abstract: Alkylcinnamylphenols, wherein the alkyl group contains 3-4 carbon atoms, are used as mosquito larvicides.
    Type: Grant
    Filed: February 27, 1975
    Date of Patent: March 23, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • 3,4-Methylenedioxy-cinnamyloxybenzene as a mosquito larvicide
    Patent number: 3939273
    Abstract: Method of destroying mosquito larvae by applying to them the compound 3,4-methylenedioxy-cinnamyloxybenzene.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: February 17, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Leonard Jurd
  • Antimicrobial agents and use thereof
    Patent number: 3936393
    Abstract: Substances which are subject to microbial spoilage are preserved by addition of a cinnamyl phenol, e.g., 2-cinnamylphenol, 4-cinnamyl phenol, 2-methoxy-4-cinnamyl-phenol, 2-cinnamyl-5-methoxy-quinol, etc.
    Type: Grant
    Filed: April 17, 1973
    Date of Patent: February 3, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Leonard Jurd, A. Douglas King, Jr., William L. Stanley