Patents Assigned to RSA Microtech, Incorporated
  • Soil additive
    Patent number: 5698001
    Abstract: A soil additive including lignonsulfonate, humic acid, an inert filler, such as bentonite clay, and a metal salt selected from anhydrous borax, magnesium sulfate, copper sulfate, iron sulfate, manganese sulfate, zinc sulfate, ammonium sulfate and gypsum. The composition may also include a predetermined concentration of a surfactant to increase the breakdown of the composition in water.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: December 16, 1997
    Assignee: RSA Microtech, Incorporated
    Inventor: Lloyd B. Keenportz