Patents by Inventor Arthur D. Brewer

Arthur D. Brewer 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: 6514911
    Abstract: A method of controlling pests is disclosed wherein the method comprises contacting said pests with an effective amount of a pesticide comprising a composition comprising: A) a compound of the formula: wherein R1 is a straight-chain perfluoroalkyl group or a partially fluorinated straight-chain alkyl group and R is a phenyl group or a substituted phenyl group having at least one substituent, wherein the substituent is selected from the group consisting of amino, formyl, halo, alkyl, alkoxy, haloalkyl, haloalkoxy, and nitro; and B) a suitable carrier therefor. In a preferred embodiment, the pesticide is a herbicide.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: February 4, 2003
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Gaik-Lean Chee, Arthur D. Brewer, Allyn R. Bell, Alexsei Yurievich Aksinenko, Vladimir Borisovich Sokolov
  • Patent number: 6498254
    Abstract: Certain pyridine and quinoline derivatives' which inhibit replication of the retroviruses HIV-1, HIV-2 and human cytomegalovirus (HCMV) are provided. Pharmaceutical compositions useful in methods of treating or inhibiting certain retrovirus infections are described.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: December 24, 2002
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Arthur D. Brewer, Stephen E. Cantor, Mark A. Dekeyser, Arthur M. P. Doweyko, John W. Harris, John A. Lacadie, James B. Pierce, Howard L. Plant, William A. Harrison
  • Patent number: 4920126
    Abstract: N-(2-Fluorophenyl)-1,2,3,4-tetrahydro-6-hydroxy-2,4-dioxo-5-pyrimidinecarbo xamide, useful for regressing or inhibiting the growth of leukemia and tumors in mammals. The compound has the formula: ##STR1## wherein R.sub.1 and R.sub.2 are selected from hydrogen or a cyclic or acyclic group which forms pyrimidine nucleosides or pseudo nucleosides, and the pharmacologically acceptable acid addition salts thereof.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: April 24, 1990
    Assignee: Uniroyal Chemical Ltd/Uniroyal Chemical Ltee
    Inventor: Arthur D. Brewer
  • Patent number: 4879276
    Abstract: Method for reducing uric acid levels in mammals, comprising administering compounds having the formula: ##STR1## wherein A is selected from the group consisting of ##STR2## and --CH.sub.2 --; X is oxygen or sulfur; R.sub.6 is hydrogen, an alkoxy group having from one to four carbon atoms, or alkylthio, amino, dialkylamino, or NHR.sub.7 wherein R.sub.7 is alkyl, aryl or arylamino, the alkyl moieties of which have from 1 to 12 carbon atoms;R.sub.1 and R.sub.2 may each independently be hydrogen; alkyl, aryl, aralkyl, aralkenyl or aralkynyl, the alkyl, alkenyl or alkynyl moieties of which have from one to six carbon atoms, or a carbohydrate residue;R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or aryl;R.sub.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: November 7, 1989
    Assignee: Uniroyal Chemical Ltd./Uniroyal Chemical Ltee
    Inventor: Arthur D. Brewer
  • Patent number: 4845217
    Abstract: A process is provided for the purification to highly purified states of 5-pyrimidinecarboxamides which are essentially insoluble in both organic and inorganic solvents. The 5-pyrimidinecarboxamide to be purified is contacted with an organic base having a pKa value in excess of 6.95 to form an adduct. The adduct is purified through recrystallization and the desired 5-pyrimidinecarboxamide is regenerated from the adduct in highly purified form with acid. Additionally, an adduct resulting from the combination of a 5-pyrimidinecarboxamide with such an organic base is provided, which adduct is capable of being purified using recrystallization techniques, where the 5-pyrimidinecarboxamide is not itself capable of being so purified due to its relative insolubility in organic and inorganic solvents.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: July 4, 1989
    Assignee: Uniroyal Chemical Ltd./Ltee
    Inventor: Arthur D. Brewer
  • Patent number: 4636508
    Abstract: Novel 5-pyrimidinecarboxamides useful for regressing or inhibiting the growth of leukemia and tumors. The compounds have the formula: ##STR1## wherein R.sub.1 is hydrogen or an alkoxy group having from one to four carbon atoms;R.sub.2 is hydrogen; alkyl, aryl, aralkyl, allyl, aralkenyl or aralkynyl, the alkyl, alkenyl or alkynyl moieties of which have from one to six carbon atoms, or a carbohydrate residue;R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or aryl;R.sub.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: January 13, 1987
    Assignees: Uniroyal Chemical Company, Inc., Uniroyal Ltd.
    Inventors: Arthur D. Brewer, John A. Minatelli
  • Patent number: 4634707
    Abstract: Novel 5-pyrimidinecarboxamides useful for regressing or inhibiting the growth of leukemia and tumors in mammals. The compounds have the formula: ##STR1## wherein: R is hydrogen, 2- or 3-halo, 4-fluoro, 2-methyl, 2- or 4-alkoxy, or 2- or 4-trifluoromethyl, and R.sub.1 is hydrogen; orR is 2-fluoro and R.sub.1 is 4-fluoro; orR is 2-methoxy and R.sub.1 is 5-methyl; andR.sub.2 and R.sub.3 are hydrogen atoms or carbohydrate residues; and,with the exception of the compound wherein R is 4-methoxy and R.sub.1 is hydrogen, the pharmacologically acceptable acid-addition salts thereof.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: January 6, 1987
    Assignees: Uniroyal Chemical Company, Uniroyal Ltd.
    Inventors: Arthur D. Brewer, John A. Minatelli
  • Patent number: 4464538
    Abstract: Disclosed is a method for synthesizing dihydro-1,4-dithiins by the reaction of an acyloin or a halocarbonyl compound with an organic thiosulfate.
    Type: Grant
    Filed: May 3, 1983
    Date of Patent: August 7, 1984
    Assignee: Uniroyal Ltd.
    Inventor: Arthur D. Brewer
  • Patent number: 4319033
    Abstract: A method of making certain 2,3-dihydro-1,4-dithiins of the following formula by the action of alpha-hydroxyketones (acyloins) of 1,2-dithiols: ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen or alkyl having 1 to 6 carbon atoms or are joined together to form a ring with 3 or 4 methylene groups, and R.sup.3 and R.sup.4 are hydrogen or the same or different alkyl groups having 1 to 10 carbon atoms, which alkyl groups may be substituted with lower alkoxy groups.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: March 9, 1982
    Assignee: Uniroyal Ltd.
    Inventors: Allan K. S. Tsai, Duncan D. Lennox, Arthur D. Brewer
  • Patent number: 4276422
    Abstract: Regulation of the growth of plant life, including herbicidal, defoliant or desiccant effects, may be accomplished with certain 2,3-dihydro-1,4-dithiin 1,1,4,4-tetroxides of the formula ##STR1## wherein the R's have various values such as hydrogen, alkyl, etc. Certain of the compounds, such as 2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetroxide, are new chemicals, and are useful as pre- and post-emergent herbicides, and in harvest aid procedures, such as defoliation/desiccation of various crops, including cotton and potatoes.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: June 30, 1981
    Assignees: Uniroyal, Inc., Uniroyal Ltd.
    Inventors: Arthur D. Brewer, Robert W. Neidermyer, William S. McIntire
  • Patent number: 4247707
    Abstract: This method of making 5,6-dihydro-2-methyl-N-phenyl-1,4-oxathiin-3-carboxamide is based on the use of an oxathiolane, namely, 2-methyl-N-phenyl-1,3-oxathiolane-2-acetamide, which may be formed by condensing 2-mercaptoethanol with acetoacetanilide under acidic conditions in a solvent medium (aromatic hydrocarbon, chlorinated hydrocarbon or alkyl ester of an aliphatic acid). The said oxathiolane, with or without purification, is reacted with hydrogen peroxide in water or in a water-organic solvent mixture under basic conditions in the presence of a catalytic amount of a metal compound such as sodium tungstate to form 2-methyl-N-phenyl-1,3-oxathiolane-2-acetamide 3-oxide.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: January 27, 1981
    Inventors: Andrew A. Znotins, Arthur D. Brewer
  • Patent number: 4182716
    Abstract: This method of making 5,6-dihydro-2-methyl-N-phenyl-1,4-oxathiin-3-carboxamide is based on the use of an oxathiolane, namely, 2-methyl-N-phenyl-1,3-oxathiolane-2-acetamide, which may be formed by condensing 2-mercaptoethanol with acetoacetanilide under acidic conditions in a solvent medium (aromatic hydrocarbon, chlorinated hydrocarbon or alkyl ester of an aliphatic acid). The said oxathiolane, with or without purification, is reacted with hydrogen peroxide in water or in a water-organic solvent mixture under basic conditions in the presence of a catalytic amount of a metal compound such as sodium tungstate to form 2-methyl-N-phenyl-1,3-oxathiolane-2-acetamide 3-oxide.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: January 8, 1980
    Assignee: Uniroyal, Ltd.
    Inventors: Andrew A. Znotins, Arthur D. Brewer
  • Patent number: 4097580
    Abstract: Fungi, bacteria and viruses are controlled, especially on plants, by application of chemicals of the formula: ##STR1## such as 2,3-dihydro-5-phenyl-1,4-dithiin 1,1,4,4-tetroxide, 2-ethyl-5,6-dihydro-3-methyl-1,4-dithiin 1,1,4,4-tetroxide and 2,3-dihydro-5-methyl-2-phenyl-1,4-dithiin 1,1,4,4-tetroxide.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: June 27, 1978
    Assignees: Uniroyal, Inc., Uniroyal Ltd.
    Inventors: Arthur D. Brewer, Robert A. Davis
  • Patent number: 4026906
    Abstract: Regulation of the growth of plant life, including herbicidal, defoliant or desiccant effects, may be accomplished with certain 2,3-dihydro-1,4-dithiin 1,1,4,4-tetroxides of the formula ##STR1## wherein the R's have various values such as hydrogen, alkyl, etc. Certain of the compounds, such as 2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetroxide, are new chemicals, and are useful as pre-and post-emergent herbicides, and in harvest aid procedures, such as defoliation/desiccation of various crops, including cotton and potatoes.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: May 31, 1977
    Assignees: Uniroyal Inc., Uniroyal, Ltd.
    Inventors: Arthur D. Brewer, Robert W. Neidermyer, William S. McIntire
  • Patent number: 4004018
    Abstract: Fungi, bacteria and viruses are controlled, especially on plants, by application of chemicals of the formula: ##STR1## such as 2,3-dihydro-5-phenyl-1,4-dithiin 1,1,4,4-tetroxide, 2-ethyl-5,6-dihydro-3-methyl-1,4-dithiin 1,1,4,4-tetroxide and 2,3-dihydro-5-methyl-2-phenyl-1,4-dithiin 1,1,4,4-tetroxide.
    Type: Grant
    Filed: June 20, 1974
    Date of Patent: January 18, 1977
    Assignees: Uniroyal Inc., Uniroyal, Ltd.
    Inventors: Arthur D. Brewer, Robert A. Davis
  • Patent number: 3997323
    Abstract: Regulation of the growth of plant life, including herbicidal, defoliant or desiccant effects, may be accomplished with certain 2,3-dihydro-1,4-dithiin 1,1,4,4-tetroxides of the formula ##STR1## wherein the R's have various values such as hydrogen, alkyl, etc. Certain of the compounds, such as 2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetroxide, are new chemicals, and are useful as pre-and post-emergent herbicides, and in harvest aid procedures, such as defoliation/desiccation of various crops, including cotton and potatoes.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: December 14, 1976
    Assignees: Uniroyal Inc., Uniroyal, Ltd.
    Inventors: Arthur D. Brewer, Robert W. Neidermyer, William S. McIntire