Patents by Inventor by Anne Elise Hystad, legal representative

by Anne Elise Hystad, legal representative 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).

  • Device for burning gas from a production plant for oil or gas
    Patent number: 5810578
    Abstract: A device for burning gas from a production plant for oil/gas comprising a burner at the top of a flare pipe (8). The production plant is connected to the flare pipe (8) through a low pressure collection line (1) for process gas. The device reduces combustion of valuable production gas to a minimum. To this end, the collection line (1) is connected to an expansion tank (2) having a return line (4) to the production plant and, downstream relative to the expansion tank (2), a liquid trap (6) has been disposed.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: September 22, 1998
    Inventors: Harald Hystad, deceased, by Anne Elise Hystad, legal representative