Patents by Inventor Larry J. Powers

Larry J. Powers 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).

  • Patent number: 4545810
    Abstract: Novel compounds of the general formula ##STR1## as well as novel compositions thereof and methods of using same are described. These compounds have been found to be valuable for controlling, modifying and inhibiting the growth of plants.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: October 8, 1985
    Assignee: SDS Biotech Corporation
    Inventors: William J. Pyne, John Lowbridge, In-Kook Chang, Florian Knotz, Larry J. Powers
  • Patent number: 4384894
    Abstract: A liquid alkali metal silicate composition comprises water, an alkali metal, e.g., sodium silicate, glyoxal, optionally a Group I-III metal salt, e.g., calcium chloride, and hydrogen peroxide, and from 0.5 to 2.0 moles of a polyhydroxy compound per mole of glyoxal used. The specific polyols are mannitol, glycerol and sucrose. This composition is easily pumpable and injectable at a temperature of 100.degree. F. or higher.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: May 24, 1983
    Assignee: Diamond Shamrock Corporation
    Inventors: Thomas M. Vickers, Larry J. Powers
  • Patent number: 4354875
    Abstract: A liquid alkali metal silicate composition comprises water, an alkali metal, e.g., sodium silicate, and as curing agent for said alkali metal silicate, a derivative of glyoxal which is 2,3-dihydroxy-1,4-dioxane or glyoxal trimer. The composition optionally contains a Group I-III metal salt, e.g., calcium chloride and hydrogen peroxide. It is easily pumpable and injectable at a temperature of 100.degree. F. or higher.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: October 19, 1982
    Assignee: Diamond Shamrock Corporation
    Inventors: Larry J. Powers, Thomas M. Vickers
  • Patent number: 4286091
    Abstract: Valuable pyridazinone intermediates to pharmaceutically useful compounds can be prepared in surprisingly high yields by the reaction of the corresponding monohydrazone with diketene, preferably in the presence of a basic catalyst. In an especially preferred embodiment, p,p'-dichlorobenzil monohydrazone and diketene are reacted in a xylene solvent in the presence of triethylamine to afford 4-acetyl-5,6-bis(p-chlorophenyl)-2H-pyridazin-3-one, which can then be reacted with ethylene carbonate in the presence of potassium carbonate to afford the antihypertensive agent, 4-acetyl-5,6-bis(p-chlorophenyl)-2-(2'-hydroxyethyl)-2H-pyridazine-3-one.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: August 25, 1981
    Assignee: Diamond Shamrock Corporation
    Inventors: Russell M. Bimber, Russell Buchman, Michael F. DePompei, Larry J. Powers
  • Patent number: 4238490
    Abstract: Compounds of the formula ##STR1## are useful antihypertensive agents.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: December 9, 1980
    Assignee: Diamond Shamrock Corporation
    Inventors: Larry J. Powers, Zaven S. Ariyan, Russell Buchman, James A. Scozzie, Robert E. Moser, William J. Pyne
  • Patent number: 4224334
    Abstract: Certain imidazothiazoles and thiazolopyrimidines have been found to prevent and inhibit the formation of granuloma tissue in animals. This result is accomplished by administering to the animal subject a therapeutically effective amount of a compound having the formula: ##STR1## wherein R is hydrogen or methyl, R' is hydrogen, lower alkyl or thioalkyl, carboxy methyl, or phenyl; R" is lower alkyl, 2-benzofuranyl, naphthyl, phenyl, or mono- or disubstituted phenyl. The hydrated precursors of certain of these compounds as well as the acid addition and quaternary salts of both the compounds and their hydrated precursors may be employed.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: September 23, 1980
    Assignee: Diamond Shamrock Corporation
    Inventors: Robert E. Moser, Larry J. Powers, Zaven S. Ariyan
  • Patent number: 4160768
    Abstract: Certain imidazothiazoles and thiazolopyrimidines have been found to prevent and inhibit the formation of granuloma tissue in animals. This result is accomplished by administering to the animal subject a therapeutically effective amount of a compound having the formula: ##STR1## WHEREIN R is hydrogen or methyl, R' is hydrogen, lower alkyl or thioalkyl, carboxy methyl, or phenyl; R" is lower alkyl, 2-benzofuranyl, naphthyl, phenyl, or mono- or disubstituted phenyl. The hydrated precursors of certain of these compounds as well as the acid addition and quaternary salts of both the compounds and their hydrated precursors may be employed.
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: July 10, 1979
    Assignee: Diamond Shamrock Corporation
    Inventors: Robert E. Moser, Larry J. Powers, Zaven S. Ariyan
  • Patent number: 4110451
    Abstract: Certain imidazothiazoles and thiazolopyrimidines have been found to prevent and inhibit the formation of granuloma tissue in animals. This result is accomplished by administering to the animal subject a therapeutically effective amount of a compound having the formula: ##STR1## wherein R is hydrogen or methyl, R' is hydrogen, lower alkyl or thioalkyl, carboxy methyl, or phenyl; R" is lower alkyl, 2-benzofuranyl, naphthyl, phenyl, or mono- or disubstituted phenyl. The hydrated precursors of certain of these compounds as well as the acid addition and quaternary salts of both the compounds and their hydrated precursors may be employed.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: August 29, 1978
    Assignee: Diamond Shamrock Corporation
    Inventors: Robert E. Moser, Larry J. Powers, Zaven S. Ariyan
  • Patent number: 4103016
    Abstract: Certain imidazothiazoles and thiazolopyrimidines have been found to prevent and inhibit the formation of granuloma tissue in animals. This result is accomplished by administering to the animal subject a therapeutically effective amount of a compound having the formula: ##STR1## wherein R is hydrogen or methyl, R' is hydrogen, lower alkyl or thioalkyl, carboxy methyl, or phenyl; R" is lower alkyl, 2-benzofuranyl, naphthyl, phenyl, or mono- or disubstituted phenyl. The hydrated precursors of certain of these compounds as well as the acid addition and quaternary salts of both the compounds and their hydrated precursors may be employed.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: July 25, 1978
    Assignee: Diamond Shamrock Corporation
    Inventors: Robert E. Moser, Larry J. Powers, Zaven S. Ariyan
  • Patent number: 4041167
    Abstract: Certain imidazothiazoles and thiazolopyrimidines have been found to prevent and inhibit the formation of granuloma tissue in animals. This result is accomplished by administering to the animal subject a therapeutically effective amount of a compound having the formula: ##STR1## wherein R is hydrogen or methyl, R' is hydrogen, lower alkyl or thioalkyl, carboxy methyl, or phenyl; R" is lower alkyl, 2-benzofuranyl, naphthyl, phenyl, or mono- or disubstituted phenyl. The hydrated precursors of certain of these compounds as well as the acid addition and quaternary salts of both the compounds and their hydrated precursors may be employed.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: August 9, 1977
    Assignee: Diamond Shamrock Corporation
    Inventors: Robert E. Moser, Larry J. Powers, Zaven S. Ariyan