Patents by Inventor Istvan Csernus

Istvan Csernus 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).

  • 1-triacontanol derivatives
    Patent number: 5283328
    Abstract: The present invention relates to compounds of the formula I[CH.sub.3 --(CH.sub.2).sub.29 --O--].sub.m --R (I)whereinif m stands for 1, thenR represents a group derived from a mono- or di- or oligosaccharide by removing the hydrogen atom from the hydroxyl group being in the 1(alpha) or 1(beta) position, or the O-protected, preferably acetylated derivative thereof,if m stands for 2, thenR represents a group derived by removing a hydrogen atom attached to the carbon atom being in position 1 of the reaction product of glucose and mono-, di- or triethylene glycol or the O-protected, preferably O-acetylated derivative thereof.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: February 1, 1994
    Assignee: Biogal Gyogyszergyar Rt.
    Inventors: Antal Kovacs, Andras Liptak, Pal Nanasi, Zoltan Szurmai, Istvan Csernus, Katalin Marossy, Katalin Kovacs-Hadadi, Zsuzsa Emri-Harsi, Ildiko Gombos-Nemeti
  • Method of treating herpes eye infections with 5-propyl-2'-deoxyuridine
    Patent number: 4937233
    Abstract: A method of treating herpes eye infections with an ophthalmic composition comprising 5-propyl-2'-deoxyuridine.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: June 26, 1990
    Assignees: MTA Kozponti Kemial Kutato Intezete, BIOCAL Cyogyszergvar
    Inventors: Anna Szabolcs nee Borbas, Laszlo tvos, Janos Sagi, Helga Tudos nee Feuer, Attila Szemzo, Zsuzsa Veres, Istvan Szinai, Miklos Vajda, Istvan Csernus, Katalin Marossy, Sandor Jancso, Eva Medgyesi nee Lukacs, Gyorgy Bacsa
  • Topical process for treating herpes infections using 5-isopropyl-2'-.beta.- d
    Patent number: 4880785
    Abstract: The invention relates to an externally applicable, antiviral pharmaceutical composition accumulating in the skin for treating herpes infections, which composition comprises 0.2-5% by mass of 5-isopropyl-2'-.beta.-deoxyuridine admixed with carriers, diluents and/or other additives conventionally used in the production of pharmaceutical compositions for external use.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: November 14, 1989
    Assignee: MTA Kozponti Kemiai Kutato Intezete and BIOGAL Gyogyszergyar
    Inventors: Anna Szabolcs nee Borbas, Laszlo tvos, Janos Sagi, Helga Tudos nee Feuer, Attila Szemzo, Zsuzsa Veres, Istvan Szinai, Miklos Vajda, Istvan Csernus, Katalin Marossy, Sandor Jancso, Eva Medgyesi nee Lukacs, Gyorgy Bacsa
  • 1-3,bis(dimethylamino)-2-propyl-4-chlorophenoxy-acetate, acid addition salts thereof, a process for the preparation of the same and pharmaceutical compositions comprising the said compounds
    Patent number: 4661618
    Abstract: This invention relates to the new 1,3-bis-(dimethylamino)-2-propyl-4-chlorophenoxyacetate of the Formula (I) ##STR1## acid addition salts thereof, a process for the preparation of the same and pharmaceutical compositions comprising the said compounds.The novel compound of the present invention corresponds to the Formula (I). This compound stimulates the function of the brain cells and thereby mental activity.The compound of the Formula (I) can be prepared by esterifying (4-chlorophenoxy)-acetic acid or a functional reactive derivative thereof with 1,3-bis-(dimethylamino)-2-propanol or a halogeno derivative thereof in a manner known per se.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: April 28, 1987
    Assignee: Biogal Gyogyszergyar
    Inventors: Imre Z. Nagy, Zsuzsanna Emri, Sandor Jancso, Istvan Csernus, Janos Balint
  • Aminoacridine-.alpha., .beta.-(D)- or -(L)-N-glycoside derivatives, the salts thereof and a process for the preparation of such compounds
    Patent number: 4462993
    Abstract: The invention relates to novel aminoacridine-.alpha.,.beta.-(D)- and -(L)-N-glycoside derivatives, the salts thereof and to a novel process for the preparation of such compounds and salts. The novel compounds have the formula I ##STR1## wherein R is hydrogen or a group of the formula II ##STR2## wherein n=0 or 1, p=1 or 2, A.sup.-p is an anion, preferably halogenide, R.sup.1 is hydrogen or a methyl group andR.sup.2 is hydrogen or a sugar residue, or R is dimethylamine,and the two substituentsX and X.sup.1 are identical or different and stand for hydrogen, a group of the formula II, dimethylamine, halogen, a C.sub.1-4 alkyl group, a C.sub.1-4 alkoxy group, for a nitro-, cyano-, carbomethoxy-, carbamoyl-, phenyl- or a C.sub.1-4 alkylphenyl group,with the restriction that at least one of the substituents R, X and X.sup.1 represents a group of formula II with R.sup.2 =sugar residue, andR.sup.3 is hydrogen or a C.sub.1-5 alkyl group.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: July 31, 1984
    Assignee: Biogal Gyogyszergyar
    Inventors: Antal Kovacs, Andras Liptak, Pal Nanasi, Lorant Janossy, Istvan Csernus, Janos Erdei, Istvan Kaszab, Kalman Polya, Andras Neszmelyi