Patents by Inventor Roger Leaver

Roger Leaver 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).

  • Methods and apparatus for the introduction of fibrous material into a substance
    Patent number: 6345777
    Abstract: Fibers to be introduced into a mixture are initially pelletized or granulated at a compacting station. The pellets or granules are then transported to a user station where they are stored, and then re-fiberized as required ready for use and introduced into a mixer where they are mixed with other ingredients to provide a mixture with the required properties which is then ready for delivery.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: February 12, 2002
    Assignee: Excel Industries Ltd.
    Inventor: Roger Leaver