Patents by Inventor Christian Menger

Christian Menger 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).

  • Two stage downhole drilling fluid filter
    Patent number: 6715570
    Abstract: A two stage filter for drilling fluid using downhole tools filters solid materials from the drilling fluid and has a first, outer filter section and a second, inner filter section. A portion of the drilling fluid flowing through the first section is received by the second section, and passed on to the fluid using device of the tool. A flow area of the first filter section is greater than a flow area of the second filter section.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: April 6, 2004
    Assignee: Schumberger Technology Corporation
    Inventors: Geoff Downton, Christian Menger, Henry Phan
  • TWO STAGE DOWNHOLE DRILLING FLUID FILTER
    Publication number: 20040050591
    Abstract: A two stage filter for drilling fluid using downhole tools filters solid materials from the drilling fluid and has a first, outer filter section and a second, inner filter section. A portion of the drilling fluid flowing through the first section is received by the second section, and passed on to the fluid using device of the tool. A flow area of the first filter section is greater than a flow area of the second filter section.
    Type: Application
    Filed: September 17, 2002
    Publication date: March 18, 2004
    Inventors: Geoff Downton, Christian Menger, Henry Phan