Patents by Inventor Paul H. R. Williame

Paul H. R. Williame 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).

  • Process for the preparation of a conglomerate sand ANF product
    Patent number: 4312671
    Abstract: Process for the preparation of a foundry sand and the foundry sand composition which consists in mixing magnesium silicate and an arylsulphonic acid in aqueous medium as the binder.
    Type: Grant
    Filed: April 29, 1980
    Date of Patent: January 26, 1982
    Assignee: Produits Ballu-Schuiling S.A.
    Inventor: Paul H. R. Williame