Patents by Inventor Dennis John Versteeg

Dennis John Versteeg 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).

  • SWITCHABLE GRATING
    Publication number: 20220037048
    Abstract: A switchable grating for phase contrast imaging comprising a reservoir with a medium and x-ray absorbing particles acoustically connected to a first ultrasound generator and a second ultrasound generator arranged along a side of the reservoir orthogonal to the first side. The ultrasound generators are each, individually or together, configured to generate a soundwave with a frequency and phase such that a standing wave is formed within the medium causing the x-ray absorbing particles to organize along pressure nodes of the standing waves.
    Type: Application
    Filed: September 18, 2019
    Publication date: February 3, 2022
    Inventors: ROGER STEADMAN BOOKER, EWALD ROESSL, DENNIS JOHN VERSTEEG
  • HYBRID CATIONIC CURABLE COATINGS
    Publication number: 20090318578
    Abstract: An ultraviolet-curable resin composition comprises: (A) at least one silane having a hydrolysable group and at least one group containing a cyclic ether; (B) at least one material containing one or more cyclic ether groups, which is not an alkoxysilane and is different from the silane (A); (C) a cationic photoinitiator; (D) optionally an organic solvent, such as propylene carbonate; and (E) optionally other conventional additives.
    Type: Application
    Filed: November 23, 2007
    Publication date: December 24, 2009
    Applicant: Eques Coatings
    Inventors: Dennis John Versteeg, Anne Ference Karel Victor Biezemans