Patents by Inventor John T. Suh
John T. Suh 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).
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Patent number: 4472584Abstract: Compounds of the formula: ##STR1## wherein Ar is heteroaryl, cycloalkyl having from 3 to 7 carbon atoms, naphthyl, indanyl, indenyl, tetrahydro naphthyl, or a radical of the formula ##STR2## wherein each of R.sub.5, R.sub.6 and R.sub.7 is independently H, alkyl, aryl, halo, lower alkoxy, nitro, amino, alkylmercapto, cyano, carboxy, carbalkoxy, sulfamyl, trifluoromethyl, hydroxy, acyloxy, methanesulfonyl, alkylamino or acylamino; and R.sub.5 and R.sub.6 when taken together, form a methylenedioxy; Z is alkylene containing 1 to about 5 carbon atoms in the principal chain; each R.sub.1 is independently hydrogen, alkyl or alkoxyalkyl, with the proviso that only one R.sub.1 may be hydrogen; R.sub.2 is lower alkyl; R.sub.3 is hydroxyalkyl containing 2 to 4 carbon atoms and R.sub.4 is H, alkyl, cycloalkyl or hydroxyalkyl containing 2 to 4 carbon atoms; wherein the alkyl, alkoxy, and acyl groups contain up to 10 carbon atoms, and their pharmaceutically-acceptable salts are disclosed.Type: GrantFiled: March 3, 1983Date of Patent: September 18, 1984Assignee: USV Pharmaceutical CorporationInventors: Bernard Loev, Howard Jones, John T. Suh
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Patent number: 4440941Abstract: Compounds of the structure ##STR1## wherein: Q is oxygen, sulfur or imino.X and Y are hydrogen, halogen, hydroxy, alkoxy, trifluoromethyl, nitro, carboxy, cyano, sulfonamido, sulfhydryl, alkyl, alkenyl, alkynyl, alkanoyl, alkylmercapto, amino, alkylamino, dialkylamino, alkysulfinyl, and alkylsulfonyl and may be the same or different;R.sub.1 is hydrogen, alkanoyl, substituted alkanoyl wherein the substituent is hydroxy, amino or cycloalkyl, aroyl, arylalkanoyl, or cycloalkylcarbonyl,n is an integer from 1 to 4 inclusive,R.sub.2 and R.sub.Type: GrantFiled: December 22, 1980Date of Patent: April 3, 1984Assignee: USV Pharmaceutical CorporationInventors: John T. Suh, Paul R. Menard, Howard Jones
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Patent number: 4354027Abstract: New substituted triazoloquinoxalin-4-ones are described as well as the use thereof as anti-hypertensive agents.Type: GrantFiled: May 19, 1980Date of Patent: October 12, 1982Assignee: USV Pharmaceutical CorporationInventors: Bernard Loev, John T. Suh, Bruce E. Williams, Vassil St. Georgiev
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Patent number: 4347246Abstract: A compound of the formula ##STR1## wherein: R.sub.1 is independently lower alkyl having from 1 to 6 carbon atoms, lower alkenyl having from 2 to 6 carbon atoms, lower alkynyl having from 2 to 6 carbon atoms, hydroxy, hydroxyalkyl, alkoxy, thio, thioalkyl, alkylmercapto, amino, aminoalkyl, alkylamino, nitro, cyano, alkanoyl, carboxy, carboxyalkyl, carbalkoxy, carbalkoxyalkyl, halogen, alkylsulfoxy, alkylsulfonyl, sulfonyl, sulfonamido, trifluoromethyl, or methylenedioxy, wherein the alkyl group in hydroxyalkyl, thioalkyl, aminoalkyl, carboxyalkyl, alkoxy, alkylmercapto, alkylsulfoxy, alkanoyl, carbalkoxy, and carbalkoxyalkyl has from 1 to 6 carbon atoms,n is an integer from 1 to 4 inclusive,R.sub.2 is selected from the group consisting of hydrogen and cycloalkyl, wherein the cycloalkyl group contains from 3 to 16 carbon atoms,R.sub.3 and R.sub.4 are hydrogen, andY is oxygen, sulphur, .dbd.NR.sub.1, .dbd.NOR.sub.1 or .dbd.N--NH.sub.2, R.sub.1 being the same as defined above.Type: GrantFiled: May 15, 1980Date of Patent: August 31, 1982Assignee: USV Pharmaceutical CorporationInventors: John T. Suh, Bruce E. Williams, Jerry W. Skiles, Bernard Loev
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Patent number: 4342692Abstract: Compounds of the formulae: ##STR1## wherein, Z and Y are each alkylene containing one to about five carbon atoms in the principal chain or said alkylene substituted with OH, alkanoyloxy, alkoxy, mercapto or alkylmercapto;each of R.sub.1, R.sub.2 and R.sub.3 is independently H, alkyl, aryl, halo, alkoxy, alkenyloxy, alkylsulfinyl, alkylsulfonyl, alkylmercapto, cyano, carboxy, carbalkoxy, carboxamido, sulfamoyl, trifluoromethyl, hydroxy, hydroxyalkyl, acyloxy, alkylamino, sulfonylamino, or acylamino; and R.sub.1 and R.sub.2, when taken together, form a methylenedioxy or --O--CO--O--;Ar is heteroaryl, cycloalkyl or ##STR2## wherein, R.sub.1, R.sub.2 and R.sub.3 are as hereindescribed; andR is H, alkyl, cycloalkyl, aryl, aralkyl, alkenyl, alkynyl, carboalkoxy, or CONR.sub.4 R.sub.5 wherein each of R.sub.4 and R.sub.5 is H or alkyl; wherein the total number of carbon atoms in each hydrocarbyl group is up to 10;and ##STR3## wherein, each of R.sub.1 and R.sub.Type: GrantFiled: October 20, 1980Date of Patent: August 3, 1982Assignee: USV Pharmaceutical CorporationInventors: John T. Suh, Rack H. Chung, Nai-Yi Wang, Jeffrey N. Barton
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Patent number: 4304771Abstract: Compounds of the structure: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are hydrogen, alkyl, alkenyl, alkynyl, phenyl-alkyl, or cycloalkyl,n is an integer from 0 to 4 inclusive,M is heterocyclic or heterocyclic alkyl,Y is hydroxy, alkoxy, amino, or substituted amino, amino-alkanoyl, aryloxy, aminoalkoxy, or hydroxyalkoxy, andR.sub.7 is hydrogen, alkanoyl, carboxylalkanoyl, hydroxyalkanoyl, amino-alkanoyl, cyano, amidino, carbalkoxy, ZS, or ##STR2## wherein Z is hydrogen, alkyl, kydroxyalkyl, aminoalkyl or the radical ##STR3## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, n, M and Y are as described above; and where Y is hydroxy their nontoxic, pharmaceutically acceptable alkali metal, alkaline earth metal, and amine salts.Type: GrantFiled: October 24, 1980Date of Patent: December 8, 1981Assignee: USV Pharmaceutical CorporationInventors: John T. Suh, Jerry W. Skiles, Bruce E. Williams, Alfred Schwab
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Patent number: 4287203Abstract: Antihypertensive compounds of the structure ##STR1## wherein: n is an integer from 0 to 2 inclusive,R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and R.sub.7 are independently hydrogen, alkyl having from 1 to 6 carbon atoms, alkenyl having from 2 to 6 carbon atoms, alkynyl having from 2 to 6 carbon atoms, cycloalkyl having from 3 to 16 carbon atoms, phenyl, benzyl, tolyl, naphthyl, phenethyl, indanyl, tetrahydronaphthyl, decanydronaphthyl, pyridyl, quinolyl, pyrrolidyl, pyrrolyl, morpholinyl, thiomorpholinyl, furyl, furfuryl, tetrahydrofurfuryl, benzimidazole, thienyl, imidolyl, or tetrahydroindolyl, and where the R.sub.1 to R.sub.7 groups are alkyl, said groups carrying a substituent selected from hydroxy, alkoxy, amino, carboxy, or carbalkoxy, the alkyl group in alkoxy and carbalkoxy having from 1 to 6 carbon atoms, or R.sub.2 taken together with R.sub.3 and the carbons to which they are attached is tetrahydronaphthyl or phenyl, and when phenyl R.sub.1 and R.sub.4 are absent, or R.sub.6 and R.sub.Type: GrantFiled: April 23, 1980Date of Patent: September 1, 1981Assignee: USV Pharmaceutical CorporationInventors: John T. Suh, Bruce E. Williams, Jerry W. Skiles, Bernard Loev
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Patent number: 4256761Abstract: Compounds of the structure: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are hydrogen, alkyl, alkenyl, alkynyl, phenyl-alkyl, or cycloalkyl,n is an integer from 0 to 4 inclusive,M is alkenyl, alkynyl, cycloalkyl, cycloalkyl-alkyl, polycycloalkyl, polycyclo-alkyl-alkyl, aryl, aralkyl, heteroaryl, heteroaryl-alkyl, hetero-cycloalkyl, hetero-cycloalkyl-alkyl, alkoxyalkyl, alkylthioalkyl, alkylamino-alkyl, dialkylamino-alkyl, fused aryl-cycloalkyl, fused aryl-cycloalkyl-alkyl, fused heteroaryl-cycloalkyl, or fused heteroaryl-cycloalkyl-alkyl,Y is hydroxy, alkoxy, amino, or substituted amino, aminoalkanoyl, aryloxy, aminoalkoxy, or hydroxyalkoxy, andR.sub.7 is hydrogen, alkanoyl, carboxylalkanoyl, hydroxyalkanoyl, amino-alkanoyl, cyano, amidino, carbalkoxy, ZS, or ##STR2## wherein Z is hydrogen, alkyl, hyroxyalkyl, aminoalkyl or the radical ##STR3## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.Type: GrantFiled: July 13, 1979Date of Patent: March 17, 1981Assignee: USV Pharmaceutical CorporationInventors: John T. Suh, Jerry W. Skiles, Bruce E. Williams, Alfred Schwab
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Patent number: 4192805Abstract: The compounds 2-N-[1,1-hydrogen or C.sub.1 -C.sub.4 -alkyl-2(3,4-methylenedioxyphenyl)ethyl]amino-1-(3-alkoxy-carbonyl or hydroxymethyl-4-benzyloxyphenyl) ethanol compounds, and the process of making these compounds. There is also disclosed a process of making the compounds 2-N-[1,1-hydrogen or C.sub.1 -C.sub.4 -alkyl-2(3,4-methylenedioxyphenyl)ethyl]amino-1-(3-hydroxy-4-hydroxy)ethan ol.Type: GrantFiled: September 8, 1978Date of Patent: March 11, 1980Assignee: Nicholas International LimitedInventors: John T. Suh, Thomas M. Bare
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Patent number: 4073798Abstract: A process for preparing a compound of the formula ##STR1## wherein R and R.sup.1 independently are selected from hydrogen and C.sub.1 -C.sub.4 alkyl groups, which comprises catalytically hydrogenating a compound of formula ##STR2## wherein R and R.sup.1 are as defined above and X is halogen using platinum oxide as catalyst.Type: GrantFiled: November 19, 1976Date of Patent: February 14, 1978Assignee: Nicholas International LimitedInventor: John T. Suh
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Patent number: 4048104Abstract: Polyisocyanate prepolymers for use in preparing polyurethane products elastomers, adhesives and foams, are prepared by combining (1) organic polyisocyanate with (2) polyols which are the hydroxyl-terminated digestion products of (a) waste or scrap polyalkylene terephthalate polymers and (b) organic polyols. Polyurethane products resulting from the polyisocyanate prepolymers exhibit useful and unexpected properties.Type: GrantFiled: August 5, 1976Date of Patent: September 13, 1977Assignee: Freeman Chemical CorporationInventors: Glenn R. Svoboda, John T. Suh, William L. Carlstrom, Gary L. Maechtle
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Patent number: 4022910Abstract: L-3-Hydroxymethyltyrosine and pharmaceutically acceptable salts thereof useful in lowering blood pressure and compositions thereof.Type: GrantFiled: February 9, 1976Date of Patent: May 10, 1977Assignee: Richardson-Merrell Inc.Inventors: John T. Suh, Richard A. Schnettler
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Patent number: 4018891Abstract: The method comprises administering to an animal a novel pharmaceutical composition containing a substituted-1-oxo-1H-2-benzothiopyran-3-carboxylic acid to inhibit antigen-antibody reaction in said animal. Representative of the compounds that can be used in the method are:1-Oxo-1H-2-benzothiopyran-3-carboxylic acid, andSodium 6-methoxy-1-oxo-1H-2-benzothiopyran-3-carboxylate.Type: GrantFiled: November 17, 1975Date of Patent: April 19, 1977Assignee: Richardson-Merrell Inc.Inventors: Thomas M. Bare, John T. Suh
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Patent number: 3997608Abstract: The compounds are N-substituted-dihydroxyphenethylamines which are cardiotonic agents, central nervous system depressants and analgetic agents. Representative of the compounds disclosed is N-(3,4-dihydroxyphenisobutyl)-.beta.-isopropyl-3,4-dihydroxyphenethylamine .Type: GrantFiled: February 5, 1975Date of Patent: December 14, 1976Assignee: Richardson-Merrell Inc.Inventor: John T. Suh
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Patent number: 3987185Abstract: The method comprises administering to an animal an amount of substituted-1-oxo-1H-2-benzopyran-3-carboxylic acid effective to inhibit antigen-antibody reaction in said animal. Representative of the compounds that can be used in the method is sodium 1-oxo-1H-2-benzopyran-3-carboxylate.Type: GrantFiled: December 20, 1974Date of Patent: October 19, 1976Assignee: Richardson-Merrell Inc.Inventors: Thomas M. Bare, John T. Suh
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Patent number: 3952036Abstract: The compounds are ferrocene derivatives useful as organo-iron sources and hematinic agents. Compounds disclosed are 1,1'-diethyl-.alpha.,.alpha.'-thiabiscyclopentadienyl-iron-S-oxide and 1,1'-diethyl-.alpha.,.alpha.'-thiabiscyclopentadienyl-iron-S-dioxide.Type: GrantFiled: September 9, 1974Date of Patent: April 20, 1976Assignee: Richardson-Merrell Inc.Inventor: John T. Suh
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N-[4-(3,4-methylenedioxyphenyl)-but-2-yl]-.beta.-(3,4-dihydroxyphen yl)ethylamine, and salts thereof
Patent number: 3932461Abstract: The compound N-[4-(3,4-methylenedioxyphenyl)-but-2-yl]-.beta.-(3,4-dihydroxyphenyl)ethy lamine, and salts thereof, are cardiotonic agents, central nervous system depressants and analgetic agents.Type: GrantFiled: June 28, 1974Date of Patent: January 13, 1976Assignee: Richardson-Merrell Inc.Inventor: John T. Suh