Patents by Inventor Rondald Brien

Rondald Brien 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).

  • Core or core part for use in the lost wax casting process
    Patent number: 4427742
    Abstract: A core or core part for use in the lost wax casting process is strengthened by admixture to its material of a proportion of short reinforcing fibres.
    Type: Grant
    Filed: October 29, 1981
    Date of Patent: January 24, 1984
    Assignee: Rolls-Royce Limited
    Inventors: Kenneth Willgoose, Rondald Brien, Peter E. Rose, Clifford G. Hannah