Patents by Inventor Karl Gierskcky

Karl Gierskcky 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).

  • NEW ESTERS OF 5-AMINOLEVULINIC ACID AND THEIR USE AS PHOTOSENSITIZING COMPOUNDS IN PHOTOCHEMOTHERAPY
    Publication number: 20050107471
    Abstract: The present invention relates to compounds being esters of 5-aminolevulinic acids or pharmaceutically acceptable salts thereof, including compounds of formula (I) R22N—CH2COCH2—CH2CO—OR1 (wherein R1 may represent alkyl optionally substituted by hydroxy, alkoxy, acyloxy, alkoxycarbonyloxy, amino, aryl, oxo or fluoro groups and optionally interrupted by oxygen, nitrogen, sulphur or phosphorus atoms; and R2 represents a hydrogen atom or a group R1, and both R2 groups may be the identical or different), and their use in diagnosis and photochemotherapy of disorders or abnormalities of external or internal surfaces of the body, and products and kits for performing the invention.
    Type: Application
    Filed: October 14, 2004
    Publication date: May 19, 2005
    Inventors: Karl Gierskcky, Johan Moan, Qian Peng, Harald Steen, Trond Warloe, Alf Bjorseth, Jo Klaveness, Nils Nilsen, Jon Braenden, Aslak Godal
  • Esters of 5-aminolevulinic acid as photosensitizing agents in photochemotherapy
    Publication number: 20050031541
    Abstract: The present invention relates to compounds being esters of 5-aminolevulinic acids or pharmaceutically acceptable salts thereof, including compounds of formula (I) R22N—CH2COCH2-CH2CO—OR1 (wherein R1 may represent alkyl optionally substituted by hydroxy, alkoxy, acyloxy, alkoxycarbonyloxy, amino, aryl, oxo or fluoro groups and optionally interrupted by oxygen, nitrogen, sulphur or phosphorus atoms; and R2 represents a hydrogen atom or a group R1, and both R2 groups may be the identical or different), and their use in diagnosis and photochemotherapy of disorders or abnormalities of external or internal surfaces of the body, and products and kits for performing the invention.
    Type: Application
    Filed: April 5, 2004
    Publication date: February 10, 2005
    Inventors: Karl Gierskcky, Johan Moan, Qian Peng, Harald Steen, Trond Warloe, Alf Bjorseth