Patents by Inventor Ludwig C. Nitsche

Ludwig C. Nitsche 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).

  • Self-assembled toroidal-spiral particles and manufacture and uses thereof
    Patent number: 9974839
    Abstract: Toroidal-spiral shaped particles, their method of manufacture, and uses thereof are disclosed. The toroidal-spiral particles can contain at least one active agent, such as a drug, and provide a controlled, sustained release of the active agent.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 22, 2018
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Ludwig C. Nitsche, Ying Liu
  • SELF-ASSEMBLED TOROIDAL-SPIRAL PARTICLES AND MANUFACTURE AND USES THEREOF
    Publication number: 20150030686
    Abstract: Toroidal-spiral shaped particles, their method of manufacture, and uses thereof are disclosed. The toroidal-spiral particles can contain at least one active agent, such as a drug, and provide a controlled, sustained release of the active agent.
    Type: Application
    Filed: August 11, 2014
    Publication date: January 29, 2015
    Inventors: Ludwig C. Nitsche, Ying Liu
  • Self-assembled toroidal-spiral particles and manufacture and uses thereof
    Patent number: 8852645
    Abstract: Toroidal-spiral shaped particles, their method of manufacture, and uses thereof are disclosed. The toroidal-spiral particles can contain at least one active agent, such as a drug, and provide a controlled, sustained release of the active agent.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: October 7, 2014
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Ludwig C. Nitsche, Ying Liu
  • Self-Assembled Toroidal-Spiral Particles and Manufacture and Uses Thereof
    Publication number: 20130071484
    Abstract: Toroidal-spiral shaped particles, their method of manufacture, and uses thereof are disclosed. The toroidal-spiral particles can contain at least one active agent, such as a drug, and provide a controlled, sustained release of the active agent.
    Type: Application
    Filed: November 17, 2010
    Publication date: March 21, 2013
    Applicant: THE BOARD OF TRUSTEES OF THE UNIVERISTY OF ILLINOIS
    Inventors: Ludwig C. Nitsche, Ying Liu
  • Ascot collar bar
    Patent number: 6247207
    Abstract: A collar bar that fits within the open collar of a shirt including a first elongated member sized in length to span and hold the open collar of the shirt. A first pair of clips, with one secured to each of the opposite ends of the elongated member, attaches the elongated member to the shirt to maintain the shirt in its open condition. A second pair of clips, each of which is secured to the elongated member near each of the clips of the first pair, secures the opposed lateral edges of the ascot to the collar bar to prevent the ascot from shifting as the knot loosens. The first and second pairs of clips may take various forms, or they may coincide, thereby serving both functions simultaneously, and the elongated member may be adjustable in length.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 19, 2001
    Inventor: Ludwig C. Nitsche