Patents by Inventor Stig Erik T. Hedrenius

Stig Erik T. Hedrenius 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).

  • Method to clean up oil spills or similar substances and a device to practice this method
    Patent number: 4492001
    Abstract: A method and a device to clean up oil spills or similar substances. Sorbent material for oil or similar products is blown out by means of an air current on to the oil via a spreading duct through a spreading opening. The sorbent material is brought to sorb the oil and oil and sorbent material is sucked up by means of a suction opening via a suction duct to a receptacle.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: January 8, 1985
    Assignee: Sancon Aktiebolag
    Inventor: Stig Erik T. Hedrenius