Patents by Inventor Cornelis Den Boer

Cornelis Den Boer 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).

  • Mattresses for subaqueous structures
    Patent number: 4096701
    Abstract: A mattress for civil engineering use, including use in subaqueous structures, comprising two plies of synthetic fabric, one of which is non-woven, the other being woven, said plies being joined through sewn threads along one length of the mattress in parallel lines 10-100 cm apart with at 10-100 cm intervals, 2-8 cm lengths of unsewn threads forming loops for tying on fascines, said mattress being provided with fascines attached by means of said loops.
    Type: Grant
    Filed: February 2, 1977
    Date of Patent: June 27, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Cornelis Den Boer