Patents by Inventor Judit Dencs

Judit Dencs 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).

  • Process for the purification of cyclosporin A
    Patent number: 5382655
    Abstract: A process is disclosed for the solution chromatographic purification of cyclosporin A from a starting mixture containing one or more of cyclosporin A, B, C, other cyclosporin components that are more polar or more apolar than cyclosporin A, and other like contaminants, by heating the starting mixture or an evaporation residue thereof to a temperature from about 80.degree. C. to about 115.degree. C., melting the heated starting mixture, and carrying out solution chromatography of the melted material, suitably first in a 48:50:2 mixture of chloroform, dichloromethane, and ethanol, and then in a mixture of like proportions, of the solvents chloroform, ethylacetate, and ethanol.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: January 17, 1995
    Assignee: Biogal Gyogyszerarugyar RT
    Inventors: Tibor Szanya, Laszlo Hanak, Gyongyi Strbka, Edit Nagy, Istvan Melczer, Gyorgy Deak, Berta Mako, Anita Karczub, Janos Balint, Ferenc Radnai, Erno Karacxony, Csaba Hajdufi, Vilmos Keri, Gyula Marton, Judit Dencs, Janos Kelemen