Patents by Inventor Veska Toncheva

Veska Toncheva 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).

  • PEG-polyacetal and PEG-polyacetal-POE graft copolymers and pharmaceutical compositions
    Publication number: 20060235161
    Abstract: The present invention provides graft copolymer delivery vehicle which comprises a polyethyleneglycol (PEG)-polyacetal (PA) copolymer or a polyethyleneglycol (PEG)-polyacetal (PA)-polyorthoester (POE) copolymer.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 19, 2006
    Inventors: Jorge Heller, Etienne Schacht, Veska Toncheva
  • PEG-polyacetal diblock and triblock copolymers and pharmaceutical compositions
    Publication number: 20060235084
    Abstract: This invention relates to block copolymer delivery vehicles comprising a polyethyleneglycol-polyacetal, and to controlled release pharmaceutical compositions comprising the delivery vehicle and an active agent. The block copolymers of the invention may be thermogel block copolymers. The pharmaceutical compositions may be in the form of a topical, syringable, or injectable formulation for local controlled delivery of the active agent.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 19, 2006
    Inventors: Jorge Heller, Etienne Schacht, Veska Toncheva
  • Functional poly-?-amino-acid derivatives useful for the modification of biologically active materials and their application
    Patent number: 7005123
    Abstract: A linear poly-?-amino-acid derivative has at least glutamic or aspartic or serinic repeating units and additionally having a functional group at one or both ends of the polymer backbone and/or only a single functional group as a side group on the polymer backbone, the said functional end group and/or side group being other than alcohol. The said functional derivative is useful for the modification of biologically active materials.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: February 28, 2006
    Assignee: Universiteit Gent
    Inventors: Etienne Honoré Schacht, Veska Toncheva