Patents by Inventor Marcel Lepant

Marcel Lepant 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: 5310757
    Abstract: Derivatives of 3,3,5-trimethylcyclohexanol methyl-2-propionate, preparation method, and therapeutical compositions containing them. Such derivatives have general formula (I).
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: May 10, 1994
    Assignee: Panmedica
    Inventors: Claude Laruelle, Marcel Lepant
  • Patent number: 5236946
    Abstract: Amino acid esters of cycloaliphatic alcohols of the formula: ##STR1## wherein A is cyclohexyl, cyclohexenyl, cyclopentyl, or cyclopentenyl, substituted with from one to three radicals selected from the group consisting of methyl, ethyl and ethenyl. These compounds are useful in treating lipemic disorders.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: August 17, 1993
    Assignee: Panmedica S.A.
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 5134157
    Abstract: Amino acid esters of cycloaliphatic alcohols of the formula: ##STR1## wherein A is cyclohexyl, cyclohexenyl, cyclopentyl and cyclopentenyl, substituted with from one to three radicals which are methyl, ethyl, and/or ethenyl. These amino acid esters have hypolipemic properties.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: July 28, 1992
    Assignee: Panmedica S.A.
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 4804684
    Abstract: Drugs with high anticonvulsant and analgesic activities constituted by symmetrical .beta.-dialkoxyiminocycloalklene derivatives in which the imine double bonds are conjugated with the cyclic double bond or bonds belonging to one or more fused benzene rings.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: February 14, 1989
    Assignee: Panmedica S.A.
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 4794121
    Abstract: Alkylcarboxamides of pyridylalkylamines, useful in human and verterinary medicine, correspond to the general formula I: ##STR1## wherein n=0 or 1,R.sub.3 represents an alkyl group of C.sub.1 to C.sub.3 or a hydrogen atom,R.sub.1 represents a hydrogen atom,R.sub.2 represents a group: ##STR2## in which: X and Y are different,X and Y each represent a linear or branched saturated or unsaturated hydrocarbon chain comprising from 1 to 16 carbon atoms;X and Y together determine a saturated or unsaturated cyclic radical substituted or not comprising from 3 to 12 carbon atoms.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: December 27, 1988
    Assignee: Panmedica
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 4764518
    Abstract: The present invention relates to novel antibacterial agents, corresponding to the following general formula I ##STR1## in which: Q represents an aromatic ring,X represents a hydrogen atom or a linear or branched alkyl group,Y represents a linkage or an alkyl group,Z represents a hydrogen atom, an alkyl, aralkyl or heteroalkyl group.These compounds constitute anti-bacterial agents with multiple pharmacological activity.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: August 16, 1988
    Assignee: Panmedica
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 4661512
    Abstract: The present invention relates to new adamantanamine derivatives.These derivatives correspond to the general formula I: ##STR1## in which: R represents hydrogen or a substituted or unsubstituted, linear or branched alkyl radical containing from 1 to 7 carbon atoms.Drugs possessing anticonvulsant properties.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: April 28, 1987
    Assignee: S. A. Panmedica
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 4621088
    Abstract: The present invention relates to new N-acyl derivatives of amino acids.These derivatives correspond to the general formula I below: ##STR1## in which A represents a linear or branched, saturated hydrocarbon radical containing from 1 to 6 carbon atoms or a saturated ring containing 6 carbon atoms,X represents a --COOH radical, a --COOAlkyl radical (alkyl from C.sub.1 to C.sub.4), a hydrogen atom or a --CH.sub.3 group when Y is --COOH or --COOAlkyl,Y represents a --COOH radical, a --COOAlkyl radical (alkyl from C.sub.1 to C.sub.4), an --NH.sub.2 group, an --SH group, an --SCH.sub.3 group, a --NH--CH(.dbd.NH)--NH.sub.2 group, a substituted or unsubstituted phenyl group, an indolin-3-yl group or a 5-hydroxyindolin-3-yl group, andQ represents an optionally substituted aromatic ring or an optionally substituted heterocycle containing 1 or 2 nitrogen atoms.Drugs having an antiallergic action.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: November 4, 1986
    Assignee: Panmedica
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 4568754
    Abstract: Derivatives of 2-[3-(3-indolyl 2-amino propionyloxy] acetic acid corresponding to the following general formula I: ##STR1## in which R represents a hydrogen atom, a linear or branched alkyl radical including 1 to 12 carbon atoms, or a mono-alicyclic or polycyclic radical containing 5 to 16 carbon atoms, possibly linked by a methylene radical, and their pharmaceutically acceptable addition salts, are useful as medicaments for palliating deficiency of the serotoninergic system.
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: February 4, 1986
    Inventors: Claude Laruelle, Marcel Lepant
  • Patent number: 4518587
    Abstract: The present invention relates to new dipeptides of L-5-hydroxytryptophan.They correspond to the general formula below: ##STR1## in which: X represents hydrogen or a lower acyl radical andQ represents a free or esterified aminoacid radical.Application: drugs for combating disorder of the serotoninergic system.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: May 21, 1985
    Assignee: S.A. Panmedica
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 4472387
    Abstract: A pharmaceutical composition suitable for increasing cerebral serotonin concentration, comprising a serotonin precursor selected from the group consisting of 5-hydroxytryptophan and derivatives of 5-hydroxytryptophan having the formula: ##STR1## wherein R represent hydrogen; a C.sub.1 -C.sub.12 alkyl group; or a C.sub.5 -C.sub.16 alicyclic, monocyclic aromatic hydrocarbyl, or polycyclic aromatic hydrocarbyl group; and a nitrogenous heterocyclic compound selected from the group consisting of inosine, theophylline, theobromine, allopurinol, pyridoxine, hypoxanthine, folic acid, adenine, nicotinamide, caffeine, and orotic acid.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: September 18, 1984
    Assignee: Panmedica S.A.
    Inventors: Claude Laruelle, Marcel Lepant
  • Patent number: 4456611
    Abstract: Derivatives of 2-[3-(3-indolyl 2-amino propionyloxy] acetic acid corresponding to the following general formula I: ##STR1## in which R represents a hydrogen atom, a linear or branched alkyl radical including 1 to 12 carbon atoms, or a mono-alicyclic or polycyclic radical containing 5 to 16 carbon atoms, possibly linked by a methylene radical, and their pharmaceutically acceptable addition salts, are useful as medicaments for palliating deficiency of the serotoninergic system.
    Type: Grant
    Filed: January 26, 1982
    Date of Patent: June 26, 1984
    Assignee: Laboratoires Panmedica
    Inventors: Claude Laruelle, Marcel Lepant
  • Patent number: 4415574
    Abstract: The present invention relates to novel soluble N.sub.2 substituted derivatives of 2,4-diamino 5-benzyl pyrimidines. These derivatives correspond to the general formula III below: ##STR1## The novel soluble N.sub.2 substituted derivatives are powerful antibacterial agents.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: November 15, 1983
    Assignee: S. A. Panmedica
    Inventors: Claude Laruelle, Marcel Lepant
  • Patent number: 4299809
    Abstract: A process for the production of calcium chloride by the reaction of hydrochloric acid with calcium carbonate in the upper sealed portion of a reactor bordered on one side by a filtration sieve. The process comprises reacting the hydrochloric acid with the calcium carbonate to form carbon dioxide and calcium chloride solution, and pressuring the solution of calcium chloride by means of the carbon dioxide across the sieve and towards an outlet of the reactor.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: November 10, 1981
    Assignee: I.S.O.
    Inventors: Gerard Teyssier, Marcel Lepant