Patents by Inventor Mark Grebe

Mark Grebe 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: 20070183918
    Abstract: The present invention relates to a process for the bonding of material for the production of three-dimensional objects by means of selective heating via a laser of wavelength from 100 to 3000 nm. The beam spot here may be a focused or unfocused beam spot, or may indeed be spread, as is the case with the diode laser, where the bars may have a stacked arrangement. The selectivity of the melting process is achieved via the application of an absorber to certain subregions of a layer composed of a pulverulent substrate, and then heating of the absorber by means of laser radiation of wavelength from 100 to 3000 nm. The heated absorber transfers the energy present therein to its surrounding pulverulent substrate, which is melted thereby and, after cooling, has firm cohesive bonding. The process is markedly more flexible, less expensive, and faster than conventional laser sintering.
    Type: Application
    Filed: January 27, 2005
    Publication date: August 9, 2007
    Applicant: DEGUSSA AG
    Inventors: Sylvia Monsheimer, Mark Grebe, Rainer Goring, Franz-Erich Baumann