Patents by Inventor Ian Maurice Howarth

Ian Maurice Howarth 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).

  • Suspensions with high storage stability, comprising an aqueous silicate solution and a filler material
    Patent number: 6372694
    Abstract: Suspension, having a high storage stability, comprising an aqueous silicate solution and a filler material, wherein the silicate solution has a silicate content of at least 20% by weight, the filler material has an average particle size of 0.8 to 15 &mgr;m and a specific weight of below 2.75 Kg/l.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: April 16, 2002
    Assignee: Crosfield Ltd.
    Inventors: Theo Jan Osinga, Ian Maurice Howarth