Patents by Inventor Christian Clausen

Christian Clausen 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: 20050013890
    Abstract: A solid imaging apparatus and method produces an integral three-dimensional object from a multiplicity of cross sectional portions of the object by selectively exposing successive layers of a liquid photoformable composition to actinic radiation. The apparatus includes a vessel for containing the composition so as to present a free surface, and a movable platform disposed within the vessel below the free surface. Part of the composition is transferred above the free surface by lowering and raising a dispenser at predetermined positions located away from the platform. A doctor blade contacts the composition transferred above the free surface, and then moves over the platform to form a substantially uniform layer of the composition.
    Type: Application
    Filed: January 16, 2004
    Publication date: January 20, 2005
    Inventors: Brian Chapman, Christian Clausen, Daniel Mickish, Eustathios Vassiliou
  • Patent number: 6664298
    Abstract: A zero-valent metal emulsion is used to dehalogenate solvents, such as pooled dense non-aqueous phase liquids (DNAPLs), including trichloroethylene (TCE). The zero-valent metal emulsion contains zero-valent metal particles, a surfactant, oil and water.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: December 16, 2003
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics & Space Administration
    Inventors: Debra R. Reinhart, Christian Clausen, Cherie L. Geiger, Jacqueline Quinn, Kathleen Brooks
  • Patent number: 6324091
    Abstract: This invention provides novel high density memory devices that are electrically addressable permitting effective reading and writing, that provide a high memory density (e.g., 1015 bits/cm3), that provide a high degree of fault tolerance, and that are amenable to efficient chemical synthesis and chip fabrication. The devices are intrinsically latchable, defect tolerant, and support destructive or non-destructive read cycles. In a preferred embodiment, the device comprises a fixed electrode electrically coupled to a storage medium comprising a storage molecule comprising a first subunit and a second subunit wherein the first and second subunits are tightly coupled such that oxidation of the first subunit alters the oxidation potential(s) of the second subunit rendering the oxidation potential(s) of the second unit different and distinguishable from the oxidation potentials of the first subunit.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: November 27, 2001
    Assignee: The Regents of the University of California
    Inventors: Daniel Tomasz Gryko, Peter Christian Clausen, David F. Bocian, Werner G. Kuhr, Jonathan S. Lindsey
  • Patent number: 6208553
    Abstract: This invention provides novel high density memory devices that are electrically addressable permitting effective reading and writing, that provide a high memory density (e.g., 1015 bits/cm3), that provide a high degree of fault tolerance, and that are amenable to efficient chemical synthesis and chip fabrication. The devices are intrinsically latchable, defect tolerant, and support destructive or non-destructive read cycles. In a preferred embodiment, the device comprises a fixed electrode electrically coupled to a storage medium comprising one or more thiol-derivatized porphyrins. The storage medium has a multiplicity of different and distinguishable oxidation states and data is stored in said oxidation states by the addition or withdrawal of one or more electrons from the storage medium via the electrically coupled electrode(s).
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: March 27, 2001
    Assignee: The Regents of the University of California
    Inventors: Daniel Tomasz Gryko, Peter Christian Clausen, Kristian M. Roth, David F. Bocian, Werner G. Kuhr, Jonathan S. Lindsey
  • Patent number: 4040652
    Abstract: A door lock having a press button operable to retract the door bolt from its engaged to its released position, and a separate operating means to positively lock the bolt whereby the press button is raised or lowered from its normal position so as to serve as a visual signal indicating whether the bolt is locked or is free for normal retraction.
    Type: Grant
    Filed: February 11, 1974
    Date of Patent: August 9, 1977
    Assignee: Daempa A/S
    Inventors: Soren Christian Schoubye Arfelt, Ib Christian Clausen, Johannes Jensen, Knud Hansen Fynbo, Jean Arnold Fischer