Patents by Inventor H. Christmann

H. Christmann 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: 20070277932
    Abstract: Film lamination vehicles and methods that can be used to laminate films to surfaces are disclosed. The vehicles and methods use a moving lamination device that forms a lamination front over which the film is applied to the surface. The lamination front complies to irregularities in the surface such as dips, bumps, etc. while providing substantially uniform pressure such that the film conforms to the surface.
    Type: Application
    Filed: October 12, 2005
    Publication date: December 6, 2007
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jason Aveldson, Conrad Anderson, H. Christmann, Anne Depalma, Brian Loesch, Chin-Yee Ng, Justin Wilhelm
  • Publication number: 20070214956
    Abstract: A variable speed fan device includes a housing, a motor, a fan blade, a controller, and a first plurality of discrete light sources. The motor is maintained by the housing and the fan blade is connected to the motor. The controller is electronically coupled to the motor and manages an operational status of the variable speed fan device. The light sources are adapted to emit light from the display panel along a discontinuous perimeter at the exterior face. In an activated state, the light emitted by each light source is visually perceptible an exterior face of the display panel. The controller is programmed to individually activate and deactivate the light sources in a predetermined pattern creating a perception of movement of light about the discontinuous perimeter at the exterior face of the display panel corresponding with an operational status of the variable speed fan device.
    Type: Application
    Filed: March 17, 2006
    Publication date: September 20, 2007
    Inventors: Casey Carlson, Glendon Kappel, H. Christmann
  • Publication number: 20050206020
    Abstract: A method of making a photonic crystal includes obtaining single spheres for use in making a self assembled opal structure. Spherical particles are placed centrifuge and separated from doublets using a relative difference in sedimentation velocity in response to centrifugal force. A method includes drawing a substrate through a meniscus at a declination to uniformly deposit spheres on the substrate. Three-dimensional photonic crystals including buried waveguides are also provided.
    Type: Application
    Filed: March 16, 2004
    Publication date: September 22, 2005
    Inventors: Kang-Hyun Baek, Anand Gopinath, H. Christmann
  • Patent number: 4081764
    Abstract: A light emitting diode comprising a single crystal of high efficiency violet fluorescing zinc oxide together with an ohmic cathode and a rectifying anode secured thereto. The diode emits near band-gap radiation at room temperature when energized with low D.C. voltage. The produced light is believed to be associated with radiative recombination of free excitons.
    Type: Grant
    Filed: September 10, 1973
    Date of Patent: March 28, 1978
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Marvin H. Christmann, Richard L. Weiher, William C. Tait