Patents by Inventor Maurice I. Chapman

Maurice I. Chapman 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).

  • Soil sterilizer and method
    Patent number: 5553414
    Abstract: Apparatus and method involves lifting at least the top 75 mm of soil from the ground, heating the raised soil to a temperature in the range of 50.degree. C. to 80.degree. C., and discharging the heated soil onto the ground and into the soil.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: September 10, 1996
    Assignee: UK Sterilisers Ltd.
    Inventors: Maurice I. Chapman, David Nicholson