Patents by Inventor Edwin G. Larson

Edwin G. Larson 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: 4529656
    Abstract: Nonblocking oil-swellable oil-insoluble synthetic resinous particle are prepared using isobornyl methacrylate as major monomer.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: July 16, 1985
    Assignee: The Dow Chemical Company
    Inventors: Daniel H. Haigh, Edwin G. Larson
  • Patent number: 4302337
    Abstract: Water containing traces of oil is cleaned by passing the oil containing water through a foraminous body, the foraminous body having a coating on the surface thereof of an oil-imbibing, oil-swellable latex polymer in a quantity sufficient to blind the foraminous body when the latex is oil swollen.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: November 24, 1981
    Assignee: The Dow Chemical Company
    Inventors: Edwin G. Larson, Daniel H. Haigh, Richard H. Hall
  • Patent number: 4172031
    Abstract: Water containing traces of oil is cleaned by passing through a porous bed containing oleophilic bodies and oil imbibing bodies. Oil is collected on the surface of the oleophilic bodies and removed from the oleophilic bodies by the oil imbibing bodies. Such beds have a high capacity for oil retention while maintaining separating efficiency.
    Type: Grant
    Filed: November 4, 1975
    Date of Patent: October 23, 1979
    Assignee: The Dow Chemical Company
    Inventors: Richard H. Hall, Daniel H. Haigh, Edwin G. Larson
  • Patent number: 3999653
    Abstract: A package containing a hazardous liquid is provided. The package comprises a container which is generally impermeable to a hazardous liquid contained therein, the container being subject to discharge of its contents when subjected to impact. The container is disposed within a first jacket of a liquid permeable material of sufficient strength to contain fragments of the container on rupture thereof. A second jacket is provided over first jacket, the second jacket having at least an inner wall and outer wall, the inner wall being liquid permeable, a hazardous liquid swellable body being contained between the inner wall and outer wall and being generally co-extensive with the inner wall and the outer wall, and a third jacket of a hazardous liquid vapor impervious membrane. The package provides substantial improvement in safety when transporting a container containing a hazardous liquid.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: December 28, 1976
    Assignee: The Dow Chemical Company
    Inventors: Daniel H. Haigh, Richard H. Hall, Edwin G. Larson