Patents by Inventor Anthony James Clarke

Anthony James Clarke 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).

  • Polyurethane foams
    Patent number: 3943075
    Abstract: Flame-resistant polyurethane foams are obtained by a process in which a tolylene diisocyanate (T.D.I.) is reacted with a polymeric polyol in the presence of a substance which is normally effective for the polymerisation of T.D.I. and an anti-ageing additive such as a halogenated aliphatic phosphate, of which the following is a specification.
    Type: Grant
    Filed: October 29, 1973
    Date of Patent: March 9, 1976
    Assignee: Dunlop Holdings Limited
    Inventors: John Fishbein, Raymond William Henry Bell, Anthony James Clarke, Peter Merriman