Patents by Inventor Fridrich Gregan

Fridrich Gregan 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: 8193184
    Abstract: Substituted sulphonamides having the general formula (I) and salts, hydrates and solvates thereof were prepared and described, wherein R1 is CO or SO2 and R2 is NH or O and where R represents linear or cyclic aliphatic chain and n represents number of linking aliphatic chain carbons (n can be 0, 1, 2 or 3), which are useful in the manufacture of the medicaments due to the carboanhydrase inhibition. These compounds are prepared by nucleophilic reaction of an amine with 4-sulfamoylbenzenesulphonyl chloride in the presence of triethylamine excess in tetrahydrofurane or in ether at temperature 0 to 20° C. The compounds show an antiglaucomatic activity.
    Type: Grant
    Filed: April 20, 2008
    Date of Patent: June 5, 2012
    Assignee: Unimed Pharma, SPOL, S.R.O.
    Inventors: Fridrich Gregan, Milan Remko, Elena Sluciakova, Jarmila Knapikova
  • Publication number: 20100125076
    Abstract: Substituted sulphonamides having the general formula (I) and salts, hydrates and solvates thereof were prepared and described, wherein R1 is CO or SO2 and R2 is NH or O and where R represents linear or cyclic aliphatic chain and n represents number of linking aliphatic chain carbons (n can be 0, 1, 2 or 3), which are useful in the manufacture of the medicaments due to the carboanhydrase inhibition. These compounds are prepared by nucleophilic reaction of an amine with 4-sulfamoylbenzenesulphonyl chloride in the presence of triethylamine excess in tetrahydrofurane or in ether at temperature 0 to 20° C. The compounds show an antiglaucomatic activity.
    Type: Application
    Filed: April 20, 2008
    Publication date: May 20, 2010
    Applicant: Unimed Pharma, Spol. S R.O.
    Inventors: Fridrich Gregan, Milan Remko, Elena Sluciakova, Jarmila Knapikova