Patents by Inventor Thomas Ringsholt

Thomas Ringsholt 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).

  • Structural building components and method for production on the basis of laterite
    Patent number: 4126475
    Abstract: Production of high strength structural building components by steam curing a compressed mixture of laterite, lime and water at a temperature preferably between 70.degree. and 100.degree. C.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: November 21, 1978
    Inventors: Torben C. Hansen, Thomas Ringsholt
  • Structural building components and method for production on the basis of laterite
    Patent number: 4048276
    Abstract: Production of high strength structural building components by steam curing a compressed mixture of laterite, lime and water at a temperature preferably between 70.degree. and 100.degree. C.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: September 13, 1977
    Assignee: Frede Hilmar Drostholm
    Inventors: Torben Christen Hansen, Thomas Ringsholt