Patents by Inventor Paul B. Crawford

Paul B. Crawford 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 the stabilization and detoxification of waste material
    Patent number: 5690833
    Abstract: A process for the treatment of waste material is disclosed. The process includes the steps of combining waste material with a treatment composition to form crystal growth structures, and adsorbing the waste material within the crystal growth structures, thereby stabilizing the waste material. The treatment composition includes natural zeolite seed, crystalline quartz, aluminum trihydrate, sodium carbonate or sodium hydroxide, and optionally dolomitic calcium oxide or calcium oxide or dolomitic limestone, and potassium hydroxide or potassium carbonate.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: November 25, 1997
    Assignee: Thomas Guelzow
    Inventors: Paul B. Crawford, James Gafford