Patents by Inventor Edwin J. Grootendorst

Edwin J. Grootendorst 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).

  • HEAVY-DUTY ROUNDSLING
    Publication number: 20090051181
    Abstract: The invention relates to a heavy-duty roundsling, which comprises an endless load-bearing core containing multiple turns of a strand material comprising high-performance fibres, and a protective cover made from interlaced strands comprising high-performance fibres, and wherein the mass ratio of high-performance fibres in the core to high-performance fibres in the cover is from 0.15 to 2.0. Said roundsling shows an advantageous combination of properties, like high strength, low weight, and high durability; enabling a higher number of lifting operations than known metal or synthetic slings, especially of heavy goods with e.g. sharp edges.
    Type: Application
    Filed: November 28, 2006
    Publication date: February 26, 2009
    Inventors: Francois J.V. Goossens, Edwin J. Grootendorst
  • Process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a catalyst
    Patent number: 6747181
    Abstract: The invention relates to a process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a supported nickel catalyst with a nickel content of 10-25 wt. %. This process is by preference used for the hydrogenation of phenyl acetylene in a styrene-containing medium which contains more that 30 wt. % of styrene.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: June 8, 2004
    Assignee: DSM N.V.
    Inventors: Hubertus J. M. Bosman, Edwin J. Grootendorst, Leonardus H. Postma, Theodorus M. Smeets