Patents by Inventor Craig Bethke

Craig Bethke 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).

  • In situ treatment process to remove metal contamination from groundwater
    Publication number: 20060186053
    Abstract: The present invention provides a process for enhancing the metal contaminant sorption capacity of mineral compounds within a groundwater-bearing formation by manipulating the pH and the surface acidity of the mineral compounds. The process is useful in removing metal contaminants from groundwater within a groundwater-bearing formation, providing a backstop treatment for groundwater after previous water treatment, and for protection of water sources, for example well-head protection.
    Type: Application
    Filed: February 12, 2004
    Publication date: August 24, 2006
    Inventor: Craig Bethke