Patents by Inventor Steven E. Lothspeich

Steven E. Lothspeich 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).

  • Methods of using geotextile composite for filtration of contaminated liquids and sediments
    Patent number: 7981296
    Abstract: Geotextile composite configured to filter liquids and related methods are provided. The geotextile composites include a pre-filter layer, a post-filter layer and at least two intermediate filter layers disposed between the pre-filter layer and the post-filter layer. At least one fibrous web that includes composite fibers and adsorptive particulates is disposed between the at least two intermediate filters. The fibrous web has a structural component, and a thermally-bondable, polymeric component. The geotextile can be placed in a location where a liquid that contains contaminants therein resides. The liquids can pass through the geotextile such that the liquid contacts the adsorptive particulate. The contaminants are then filtered from the liquid through contact of the contaminants with the adsorptive particulate.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: July 19, 2011
    Assignee: Huesker, Inc.
    Inventors: Forrest E. Cronia, Cameron B. Gallamore, Steven E. Lothspeich
  • Geotextile composite for filtration of contaminated liquids and sediments and methods of using same
    Publication number: 20110108487
    Abstract: Geotextile composite configured to filter liquids and related methods are provided. The geotextile composites include a pre-filter layer, a post-filter layer and at least two intermediate filter layers disposed between the pre-filter layer and the post-filter layer. At least one fibrous web that includes composite fibers and adsorptive particulates is disposed between the at least two intermediate filters. The fibrous web has a structural component, and a thermally-bondable, polymeric component. The geotextile can be placed in a location where a liquid that contains contaminants therein resides. The liquids can pass through the geotextile such that the liquid contacts the adsorptive particulate. The contaminants are then filtered from the liquid through contact of the contaminants with the adsorptive particulate.
    Type: Application
    Filed: January 17, 2011
    Publication date: May 12, 2011
    Inventors: Forrest E. Cronia, Cameron B. Gallamore, Steven E. Lothspeich
  • Geotextile composite for filtration of contaminated liquids and sediments
    Patent number: 7870965
    Abstract: Geotextile composite configured to filter liquids The geotextile composites include a pre-filter layer, a post-filter layer and at least two intermediate filter layers disposed between the pre-filter layer and the post-filter layer. At least one fibrous web that includes composite fibers and adsorptive particulates is disposed between the at least two intermediate filters. The fibrous web has a structural component, and a thermally-bondable, polymeric component.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: January 18, 2011
    Assignee: Huesker, Inc.
    Inventors: Forrest E. Cronia, Cameron B. Gallamore, Steven E. Lothspeich
  • GEOTEXTILE COMPOSITE FOR FILTRATION OF CONTAMINATED LIQUIDS AND SEDIMENTS AND METHODS OF USING SAME
    Publication number: 20090114597
    Abstract: Geotextile composite configured to filter liquids The geotextile composites include a pre-filter layer, a post-filter layer and at least two intermediate filter layers disposed between the pre-filter layer and the post-filter layer. At least one fibrous web that includes composite fibers and adsorptive particulates is disposed between the at least two intermediate filters. The fibrous web has a structural component, and a thermally-bondable, polymeric component.
    Type: Application
    Filed: November 5, 2007
    Publication date: May 7, 2009
    Inventors: Forrest E. Cronia, Cameron B. Gallamore, Steven E. Lothspeich