Patents by Inventor Andrew Wunder

Andrew Wunder 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).

  • Amine polymer-modified nanoparticulate carriers
    Patent number: 7541017
    Abstract: The invention relates to a composition comprising a colloid which is stable under physiological pH and ionic strength, said colloid comprising particles having a silica core and a shell: a) wherein said shell comprises a cross-linked poly(ethylene)imine polymer having amine functionalities; b) wherein the particles have a volume-weighted mean particle size diameter of less than 200 nm, and c) wherein greater than 50% of said polymer in the colloid is bound to the core surfaces, wherein the polymer having amine functionalities has an average molecular weight less than 100,000 g/mol, the composition has a H of between 6 and 8; and d) wherein the colloid contains between 300 and 6000 .?mol amine-monomer/g core particles.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: June 2, 2009
    Assignee: Carestream Health, Inc.
    Inventors: Joseph F. Bringley, Tiecheng A. Qiao, John W. Harder, Andrew Wunder, James M. Hewitt
  • Amine polymer-modified nanoparticulate carriers
    Publication number: 20050192381
    Abstract: There are disclosed colloids containing polymer-modified core-shell particle carrier. The described colloids containing core-shell nanoparticulate carrier particles wherein the shell contains a polymer having amine functionalities. The described carrier particles are stable under physiological conditions.
    Type: Application
    Filed: January 14, 2005
    Publication date: September 1, 2005
    Inventors: Joseph Bringley, Tiecheng Qiao, John Harder, Andrew Wunder, James Hewitt