Patents by Inventor William D. Potter

William D. Potter 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).

  • Curable composition comprising a calcium fluoro-alumino silicate glass and poly(carboxylic acid) or precursor thereof
    Patent number: 4123416
    Abstract: A novel calcium fluoroaluminosilicate glass consisting essentially of from 25 to 35% by weight of silicon calculated as silica, from 30 to 40% by weight of aluminum calculated as alumina, from 20 to 35% by weight calcium, calculated as calcium oxide, and up to 9% by weight fluorine (preferably 4-7%) can be associated with a poly(carboxylic acid) e.g. as an intimate mixture of glass and acid to constitute a composition curable on contact with water and useful, for example, as a loading on a splinting bandage. Such a bandage preferably has a ratio of set time to gel time from 4:1 to 8:1 with a minimum gel time of 60 seconds.
    Type: Grant
    Filed: May 11, 1976
    Date of Patent: October 31, 1978
    Assignee: Smith & Nephew Research Limited
    Inventors: William D. Potter, Andrew C. Barclay, Reginald Dunning, Richard J. Parry