Patents by Inventor Mark den Heijer

Mark den Heijer 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: 20210080174
    Abstract: The invention relates to a method and system for cooling a natural gas feed stream and recovering a natural gas liquid stream from the natural gas feed stream using an expansion-based cooling unit and a natural gas liquid removal unit which are integrated. The integration is done by using (part of) a cooling stream from the expansion-based cooling unit to provide cooling duty to the natural gas liquid removal unit.
    Type: Application
    Filed: April 11, 2019
    Publication date: March 18, 2021
    Inventors: Uchenna McDonald AGBARAKWE, Mark DEN HEIJER
  • Patent number: 8852408
    Abstract: An electrochemical cell apparatus is disclosed where the cell has a chamber for containing an electrolyte. The chamber is situated between a bottom and a top substrate. One or more bottom windows are in the bottom substrate and one or more top windows are in the top substrate. Each window has a window cover facing the chamber. The top window and bottom window each have a portion in alignment so that an electron beam passes through both respective portions. A spacer is deposited between the top and bottom substrate and forming walls surrounding the chamber. Two or more electrodes, each having an interior portion that is within the chamber and electrically continuous with an exterior portion external to the chamber, are located on the chamber side of the bottom substrate.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: October 7, 2014
    Assignee: International Business Machines Corporation
    Inventors: S. Jay Chey, Mark den Heijer, Aparna Prabhakar, Frances M. Ross, Ranjani Sirdeshmukh
  • Publication number: 20100276277
    Abstract: An electrochemical cell apparatus is disclosed where the cell has a chamber for containing an electrolyte. The chamber is situated between a bottom and a top substrate. One or more bottom windows are in the bottom substrate and one or more top windows are in the top substrate. Each window has a window cover facing the chamber. The top window and bottom window each have a portion in alignment so that an electron beam passes through both respective portions. A spacer is deposited between the top and bottom substrate and forming walls surrounding the chamber. Two or more electrodes, each having an interior portion that is within the chamber and electrically continuous with an exterior portion external to the chamber, are located on the chamber side of the bottom substrate.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Inventors: S. Jay Chey, Mark den Heijer, Aparna Prabhakar, Frances M. Ross, Ranjani Sirdeshmukh