Patents by Inventor André Hess

André Hess 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).

  • Highly radioactive miniaturized ceremic strontium 90 radiation sources and method for the production thereof
    Patent number: 6613303
    Abstract: The present invention relates to highly radioactive, miniaturized, cylindrical strontium 90 titanate, strontium 90 zirconate, and strontium 90 silicate radiation sources having an activity exceeding 25 mCi/mm3, preferably ≧30 mCi/mm3, and a diameter less than 0.7 mm, preferably less than 0.4 mm. Another subject of this invention is a method for the production of these extremely small, but highly radioactive radiation sources.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: September 2, 2003
    Assignee: Eurotope Entwicklungsgesellschaft für Isotopentechnologien mbH
    Inventors: André Hess, Teja Reetz
  • Medical radioactive iodine-125 miniature radiation sources and methods of producing same
    Patent number: 6485406
    Abstract: The present invention relates to new radioactive iodine-125 miniature radiation sources (seeds) comprising a radioactive carrier matrix which consists of a porous and mechanically stable inorganic material, the pores of which contain inorganic insoluble iodide-125, and which is enclosed within a capsule made of a corrosion-resistent and body-compatible material or which is coated with such a material. The iodine seeds according to the present invention further may contain (a) usual X-ray marker(s). Another object of the present invention are methods for manufacturing said novel iodine-125 seeds.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: November 26, 2002
    Assignee: Eurotope Entwicklungsgesellschaft fur Istopentechnologien mbH
    Inventors: Jürgen Ziegler, Claudia Müller, Gunnar Mann, André Hess