Patents by Inventor James R. Welcome, deceased

James R. Welcome, deceased 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).

  • No-bake foundry binder system
    Patent number: 4083823
    Abstract: A no-bake foundry binder system comprises an alkali metal silicate binder and a hydroxy-terminated polyester.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: April 11, 1978
    Assignee: Hooker Chemicals & Plastics Corporation
    Inventors: James R. Welcome, deceased, by Elizabeth M. Welcome, administratrix