Patents by Inventor Martin W. J. Plum

Martin W. J. Plum 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 removal of pollutants from the soil
    Patent number: 6742961
    Abstract: A process for removing pollutants from soil with the aid of a stripping gas which involves (a) injecting the stripping gas into the soil at the level of and/or under the pollutant, (b) volatilizing the pollutant with the stripping gas, so that it rises to the ground level above the pollutant, (c) collecting and further treatment of the volatilized pollutant, a pneumatic screen being provided in the soil along the circumference of the polluted area.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: June 1, 2004
    Assignee: DSM IP Assets B.V.
    Inventor: Martin W. J. Plum
  • Process for the removal of pollutants from the soil
    Publication number: 20030129028
    Abstract: The invention relates to a process for removing pollutants from soil with the aid of a stripping gas which involves
    Type: Application
    Filed: February 19, 2003
    Publication date: July 10, 2003
    Applicant: DSM N.V.
    Inventor: Martin W.J. Plum
  • Process for the removal of pollutants from the soil
    Patent number: 6547489
    Abstract: The invention relates to a process for removing pollutants from soil with the aid of a stripping gas which involves (a) injecting the stripping gas into the soil at the level of and/or under the pollutant, (b) volatilizing the pollutant with the stripping gas, so that it rises to the ground level above the pollutant, (c) collecting and further treatment of the volatilized pollutant, a pneumatic screen being provided in the soil along the circumference of the polluted area.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 15, 2003
    Assignee: DSM N.V.
    Inventor: Martin W. J. Plum
  • Process for the removal of pollutants from the soil
    Publication number: 20010021336
    Abstract: The invention relates to a process for removing pollutants from soil with the aid of a stripping gas which involves
    Type: Application
    Filed: February 28, 2001
    Publication date: September 13, 2001
    Inventor: Martin W.J. Plum