Patents by Inventor Philipp Harder

Philipp Harder 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).

  • Publication number: 20060088476
    Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy) phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.
    Type: Application
    Filed: October 25, 2005
    Publication date: April 27, 2006
    Applicant: Polyzenix GmbH
    Inventors: Philipp Harder, Olaf Fritz, Ulf Fritz
  • Publication number: 20020190759
    Abstract: A method for selectively assembling a molecular device on a substrate comprises contacting the first substrate with a solution containing molecular devices; impeding bonding of the molecular devices to the substrate such that application of a voltage potential to the substrate results in assembly of the molecular device on the substrate at a rate that is at least 1.5 times the rate of assembly of the molecular device on a voltage-neutral substrate; and applying a voltage potential to the substrate so as to cause the molecular devices to assemble on the substrate. More specifically, selective assembly can be obtained by providing a mixture comprising protected molecular devices in solution; removing protective groups from some of the molecular devices; activating the de-protected molecular devices; contacting the substrate with the solution; and allowing the activated devices to bond to the substrate such that the they assemble on the first substrate.
    Type: Application
    Filed: March 4, 2002
    Publication date: December 19, 2002
    Inventors: James M. Tour, Jiping Yang, Philipp Harder, David L. Allara, Paul Weiss