Patents by Inventor Ivan C. Nordin

Ivan C. Nordin 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).

  • N-(2,6-disubstituted aromatic)-N'-pyridinyl ureas
    Patent number: 4962116
    Abstract: N-(2,6-Disubstitutedphenyl)-N'-3- and 4-pyridinyl ureas and pharmaceutically acceptable acid addition salts having anticonvulsant activity are described as well as a process for their manufacture, formulations containing the compounds and a method of treating epilepsy using the compounds in unit dosage form.
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: October 9, 1990
    Assignee: Warner-Lambert Company
    Inventors: Sandra J. Lobbestael, Ivan C. Nordin, Robert Fleming
  • Anticonvulsant N-(2,6-disubstituted aromatic)-n'-pyridinyl ureas
    Patent number: 4629731
    Abstract: N-(2,6-Disubstitutedphenyl)-N'-3- and 4-pyridinyl ureas and pharmaceutically acceptable acid addition salts having anticonvulsant activity are described as well as a process for their manufacture, formulations containing the compounds and a method of treating epilepsy using the compounds in unit dosage form.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: December 16, 1986
    Assignee: Warner-Lambert Company
    Inventors: Sandra J. Lobbestael, Ivan C. Nordin, Robert Fleming
  • 5-Amino-N-(3-chloro- 2-methyl-, or 2-fluorophenyl)-1,3-dimethyl-1H-pyrazole-4-carboxamides and use as an anti-convulsant
    Patent number: 4438092
    Abstract: New 5-amino-N-(substitutedphenyl)-1,3-disubstituted-1H-pyrazole-4-carboxamides useful as anticonvulsant agents for treating warm-blooded animals are disclosed. Also disclosed are intermediates and methods for preparing the new compounds and methods for using the new compounds.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: March 20, 1984
    Assignee: Warner-Lambert Company
    Inventors: Dietrich Schweiss, Ivan C. Nordin
  • 4-Lower alkyl-3-phenoxypyridine-1-oxide and a method for its production
    Patent number: 4386094
    Abstract: 4-Lower alkyl-3-phenoxypyridine-1-oxides, pharmacological agents possessing anticonvulsant properties, pharmaceutical compositions and methods of using said compositions are disclosed. These compounds are produced by reacting 4-lower alkyl-3-phenoxypyridines with an oxidizing agent.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: May 31, 1983
    Assignee: Warner-Lambert Company
    Inventors: Donald E. Butler, Ivan C. Nordin
  • Method for treating convulsions with pyrazole-4-carboxamide derivatives
    Patent number: 4346097
    Abstract: New 5-amino-N-(substituted phenyl)-1,3-disubstituted-1H-pyrazole-4-carboxamides useful as anticonvulsant agents for treating warm-blooded animals are disclosed. Also disclosed are intermediates and methods for preparing the new compounds and methods for using the new compounds.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: August 24, 1982
    Assignee: Warner-Lambert Company
    Inventors: Dietrich Schweiss, Ivan C. Nordin
  • Process for the preparation of cis-(.+-.)-3,4-dihydro-N,N,2-trimethyl-2H-1-benzopyran-3-amine and intermediates produced thereby
    Patent number: 4203895
    Abstract: A process for the preparation of cis-(.+-.)-3,4-dihydro-N,N,2-trimethyl-2H-1-benzopyran-3-amine (I), a known antidepressant, is disclosed. The process of the invention is a multi-step process starting with 2-methyl-2H-1-benzopyran (II), which involves the production of novel intermediates (2.alpha.,3.beta.,4.alpha.)-(.+-.)-3,4-dihydro-2-methyl-4-(methylamino)-2H -1-benzopyran-3-ol (IV) and its hydrogen sulfate ester (V) as well as (1a.alpha.,2.beta.,7b.alpha.)-(.+-.)-1,1a,2,7b-tetrahydro-1,2-dimethyl[1]b enzopyrano[3,4-b]azirine (VI) and cis-(.+-.)-3,4-dihydro-N,2-dimethyl-2H-1-benzopyran-3-amine (VII). In the final step of the process, compound VII is methylated to form compound I.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: May 20, 1980
    Assignee: Warner-Lambert Company
    Inventors: Robert F. Parcell, Ivan C. Nordin
  • N-(Substituted-aminoalkyl)-2-oxo-1-pyrrolidineacetamides
    Patent number: 4145347
    Abstract: N-(substituted-aminoalkyl)-2-oxo-1-pyrrolidineacetamides which are useful as pharmacological agents, especially cognition activators, are disclosed. They can be produced by reacting a 2-oxo-1-pyrrolidineacetate ester with an appropriate amine.
    Type: Grant
    Filed: March 7, 1978
    Date of Patent: March 20, 1979
    Assignee: Parke, Davis & Company
    Inventors: Yvon J. L'Italien, Ivan C. Nordin