Patents by Inventor Norbert Berkowitz

Norbert Berkowitz 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 preparing coal to increase its calorific value and making it safe for storage and transport
    Patent number: 4586935
    Abstract: There is described an improved method for treating low rank coal to lessen the risk of autogenous heating and attendant combustion hazards by means of passing the coal through a bath of molten metal to elevate its temperature into the range Td to Td+50.degree. C., where Td is the temperature of decomposition of the coal.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: May 6, 1986
    Assignees: Meridian Petroleums Ltd., Norbert Berkowitz
    Inventor: Norbert Berkowitz