Patents by Inventor Jan J. Naets

Jan J. Naets 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).

  • Process for the production of polyethylene and ethylene copolymers
    Patent number: 8048971
    Abstract: The invention provides a process and an apparatus for the high pressure polymerization of ethylene in which a jet pump is used to pump a fluid into a polymer/monomer product mixture leaving a bumped tubular reactor. The fluid may be recycled monomer or another fluid such as a modifier.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: November 1, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ivo T. Goossens, Philip H. Cornelissen, Jan J. Naets, Henri A. Lammens
  • Compressor for high pressure polymerization
    Patent number: 7563413
    Abstract: The invention provides a compressor for use as a secondary compressor for an ethylene polymerization tubular reactor comprising a motor and at least two compressor frames, at least one of the compressor frames being coupled to the motor by means of a contoured diaphragm flexible coupling.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: July 21, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jan J. Naets, Philip H. Cornelissen, Christopher K. Morgan