Patents by Inventor Ludwig D. Wiener

Ludwig D. Wiener 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).

  • Patent number: 4687523
    Abstract: A core sample from a subterranean formation is injected with an aqueous fluid and a pressurized gas which is soluble in the aqueous fluid. The fluid pressure is maintained within the core sample for a predetermined soak period. The core sample is then rapidly depressurized to atmospheric pressure so that gas is very rapidly or dynamically evolved out of solution within the core sample and rapidly transports solid contaminant particles to the outer surface of the core sample where they may be removed.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: August 18, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Arthur C. Hall, E. Frank Schultz, Ludwig D. Wiener