Patents by Inventor Anja Ruebner

Anja Ruebner 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).

  • Polymeric cyclodextrin nitrate esters
    Patent number: 6527887
    Abstract: Cyclodextrin polymers are nitrated to provide novel nitrate esters of cyclodextrin polymers which are useful for encapsulating explosives to provides energetic compositions of reduced sensitivity; a new method for the preparation of cyclodextrin polymers is provided.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: March 4, 2003
    Assignee: Mach I, Inc.
    Inventors: Anja Ruebner, Gary L. Statton, John P. Consaga
  • Hydrophilic carrier for photosensitizers that cleaves when they catalyze the formation of singlet oxygen
    Patent number: 6331530
    Abstract: The invention provides a composition of matter comprising two &bgr;-cyclodextrin molecules and a cleavable linker attached to and joining each such &bgr;-cyclodextrin. This invention further provides a composition which comprises a hydrophilic matrix comprising the above-described composition of matter and a photosensitizer encapsulated within the matrix, wherein the cleavable linker is cleaved upon exposure to light of a wavelength appropriate for the light to be absorbed by the photosensltlzer. This invention also provides a method of killing a tumor cell which comprises bringing into proximity with the tumor cell the above-described composition and exposing the composition to light so as to cleave the cleavable linker and release the photosensitizer.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: December 18, 2001
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Ronald Breslow, Anja Ruebner, Zhiwei Yang