Patents by Inventor Joanne M. Johnson

Joanne M. Johnson 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).

  • Coffee-sawdust-based solid fuel composition
    Patent number: 6793697
    Abstract: A solid fuel composition of spent coffee grounds and/or green coffee bean waste, sawdust and a wax binder is useful for manufacturing a fire-log with more flame output. This combination of solid particulate together with wax burns with a natural-sounding sizzling and crackling. The fuel composition also develops cracks as it burns, in much the same way as natural wood logs do. The cracks expose more surface area to combustion air, thereby enhancing flame output.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: September 21, 2004
    Inventors: Rodney K. Sprules, Joanne M. Johnson
  • Coffee-sawdust-based solid fuel composition
    Publication number: 20020189159
    Abstract: A solid fuel composition of spent coffee grounds and/or green coffee bean waste, sawdust and a wax binder is useful for manufacturing a fire-log with more flame output. This combination of solid particulate together with wax burns with a natural-sounding sizzling and crackling. The fuel composition also develops cracks as it burns, in much the same way as natural wood logs do. The cracks expose more surface area to combustion air, thereby enhancing flame output.
    Type: Application
    Filed: March 20, 2002
    Publication date: December 19, 2002
    Inventors: Rodney K. Sprules, Joanne M. Johnson