Patents by Inventor Lars M. Qvist

Lars M. Qvist 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 of facilitating comminution of wood and other types of vegetable biomass for use as fuel
    Patent number: 4797135
    Abstract: A method for the production of highly comminuted flour of wood and other types of vegetable biomass suitable for the use as fuel, in that coarsely ground wood or other type of coarsely ground vegetable biomass is treated with a dilute solution of an alkaline substance, and subsequently exposed to elevated temperatures, whereafter the treated coarsely ground material is subjected to grinding, whereby a finely divided powder with a narrow particle size distribution is obtained.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: January 10, 1989
    Inventors: Josef Kubat, Lars M. Qvist