Patents by Inventor Donald P. Matthews

Donald P. Matthews 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: 4810800
    Abstract: 1,2-Disubstituted imidazoles useful as antihypertensive agents are described herein. The compounds are obtained from the appropriate 1-substituted imidazole which can be reacted with methyl oxalyl chloride to give the oxalyl derivative or it can be reacted with cyanogen chloride to give the 2-carbonitrile which can then be converted to the other derivatives desired.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: March 7, 1989
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Donald P. Matthews, James R. McCarthy, Jeffrey P. Whitten, Robert J. Broersma, Jr.
  • Patent number: 4788335
    Abstract: N-(3-Dialkylamino-2-propenylidene)-N-alkylalkanaminium salts substituted in the 2-position with an ether or thioether and having the formula ##STR1## are active as hypoglycemic agents.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: November 29, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Eugene R. Wagner, Donald P. Matthews, Charlotte L. Barney
  • Patent number: 4533677
    Abstract: N-(3-Dialkylamino-2-propenylidene)-N-alkylalkanaminium salts substituted in the 2-position with an ether or thioether and having the formula ##STR1## are active as hypoglycemic agents.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: August 6, 1985
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Eugene R. Wagner, Charlotte L. Barney, Donald P. Matthews
  • Patent number: 4409227
    Abstract: 4-(((Heterocyclo)thio)methyl)benzoic acids, esters, amides and pharmaceutically-acceptable salts thereof having hypoglycemic activity in mammals, including a method of use and pharmaceutically-acceptable compositions.
    Type: Grant
    Filed: March 9, 1982
    Date of Patent: October 11, 1983
    Assignee: The Dow Chemical Co.
    Inventor: Donald P. Matthews
  • Patent number: 4328244
    Abstract: Novel (((substituted-phenyl)methyl)amino)benzenesulfonic acids having antiviral activity are disclosed. Compounds within the scope of the invention have the formula ##STR1## wherein R.sub.1 represents lower alkyl, lower alkoxy, nitro, amino, cyano, trifluoromethyl, acetyl, methylthio, methylsulfinyl, methylsulfonyl, benzoyl, substituted benzoyl, aminosulfonyl or halogen; and R.sub.2 and R.sub.3 are the same or different and are selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, amino, cyano, trifluoromethyl, acetyl, methylthio, methylsulfinyl, methylsulfonyl, benzoyl, substituted benzoyl, aminosulfonyl or halogen. The invention also includes the pharmaceutically-acceptable salts of the novel (((substituted-phenyl)methyl)amino)benzenesulfonic acids. Methods of using the compounds as antiviral agents are also disclosed, as well as compositions which comprise a carrier in combination with a suitable antiviral active compound.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: May 4, 1982
    Assignee: The Dow Chemical Company
    Inventors: John K. Daniel, Donald P. Matthews, Norton P. Peet
  • Patent number: 4325959
    Abstract: 4-(((Heterocyclo)thio)methyl)benzoic acids, esters, amides and pharmaceutically-acceptable salts thereof having hypoglycemic activity in mammals, including a method of use and pharmaceutically-acceptable compositions.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: April 20, 1982
    Assignee: The Dow Chemical Company
    Inventor: Donald P. Matthews
  • Patent number: 4263320
    Abstract: Hypoglycemic phenylpropynylamino benzoic acids and the pharmaceutically-acceptable salts thereof, a method for lowering serum sugars and hypoglycemic compositions useful for the treatment of diabetes.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: April 21, 1981
    Assignee: The Dow Chemical Company
    Inventors: Donald P. Matthews, Eugene R. Wagner, Roger D. McDermott
  • Patent number: 4218475
    Abstract: Substituted or unsubstituted benzylaminobenzene alkanoic or alkenoic acids are disclosed as hypolipidemic agents and especially as hypocholesterolemic agents; along with a method of use and pharmaceutical compositions thereof.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: August 19, 1980
    Assignee: The Dow Chemical Company
    Inventors: Eugene R. Wagner, Donald P. Matthews, Alfred A. Renzi
  • Patent number: 4192884
    Abstract: Halo-substituted 4-(((thienyl)methyl)amino)benzoic acids, the corresponding esters and salts thereof, and a method for lowering serum lipid levels in mammals.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: March 11, 1980
    Assignee: The Dow Chemical Company
    Inventors: Eugene R. Wagner, Donald P. Matthews
  • Patent number: 4105791
    Abstract: The present invention relates to novel monocyclic and polycyclic p-cycloalkylaminobenzoic acids, the corresponding pharmaceutically-acceptable salts and the esters thereof. This invention also relates to methods for reducing plasma lipid levels, especially cholesterol and triglyceride levels, using the compounds of the present invention.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: August 8, 1978
    Assignee: The Dow Chemical Company
    Inventors: Eugene R. Wagner, Donald P. Matthews