Patents by Inventor Jan H. Van der Velden

Jan H. Van der Velden 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 making a ceramic article and articles made by the method
    Patent number: 4438055
    Abstract: A ceramic article is made by shaping, drying and firing a body shaped from a mixture of clay and an organic fraction. The organic fraction is derived from domestic waste by separation of metal parts, coarse material and material in sheet form. The proportion of clay in the mixture is 40 to 65% by weight and the clay contains more than 10% by weight of particles of size greater than 2.mu..
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: March 20, 1984
    Assignees: Esmil, B.V., Hoeke Engineering, N.V.
    Inventor: Jan H. Van der Velden