Patents by Inventor Francis M. Fortson

Francis M. Fortson 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).

  • Method for converting a contaminated waste material to an innocuous granular substance
    Patent number: 5238583
    Abstract: A method for converting a contaminated waste material which is not environmentally acceptable to one that is environmentally acceptable. The waste material is mixed with an effective amount of reagent material, such as fly ash, in a containing means, such as an earthen pit. An effective amount of water is then added to cause an exothermic reaction and cause the temperature of the mixture to reach about 140.degree. F. to about 180.degree. F. The so-treated mixture is then allowed to dry without setting.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: August 24, 1993
    Assignee: Derrick's Enterprise, Inc.
    Inventor: Francis M. Fortson