Patents by Inventor Arthur J. Clem

Arthur J. Clem 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).

  • Clay mixture having contamination resistance
    Patent number: 5114892
    Abstract: A mixture of swellable clay, such as bentonite, is charged with an additive which provides an excess of single-charged cations which tend to neutralize the deleterious effects of double-charged cations which are naturally present in seawater and industrial waste. The mixture is deposited on and carried by a sheet to facilitate its uses as a pond liner or a foundation sealant.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: May 19, 1992
    Assignee: James Clem Corporation
    Inventor: Arthur J. Clem
  • Clay mixture having contamination resistance
    Patent number: 4997695
    Abstract: A mixture of swellable clay, such as bentonite, is charged with an additive which provides an excess of single-charged cations which tend to neutralize the deleterious effects of double-charged cations which are naturally present in seawater and industrial waste. The mixture is deposited on and carried by a sheet to facilitate its uses as a pond liner or a foundation sealant.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: March 5, 1991
    Assignee: James Clem Corporation
    Inventor: Arthur J. Clem
  • Seawater resistant clay mixture
    Patent number: 4997701
    Abstract: A mixture of swellable clay, such as bentonite, is charged with an additive which provides an excess of univalent ions which tend to neutralize the deleterious effects of ions which are naturally present in seawater. The mixture is deposited on and carried by a sheet to facilitate its uses as a pond liner or a foundation sealant.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: March 5, 1991
    Assignee: James Clem Corporation
    Inventor: Arthur J. Clem
  • Waterproofing soil
    Patent number: 4501788
    Abstract: A method and a product providing for waterproofing soil utilizing a flexible non-biodegradable support capable of venting gas coated with water swellable bentonite and covering the soil to be waterproofed with the coated support.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: February 26, 1985
    Assignee: Clem Environmental Corp.
    Inventor: Arthur J. Clem