Patents by Inventor William Robb

William Robb 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).

  • Fertilizer dispensing method
    Patent number: 6351687
    Abstract: A method for dispensing blended fertilizer to a customer at a dispensing site, which may be remote and unmanned. The fertilizer dealer enters the blend of standard fertilizer ingredients required to provide the customer's desired nutrients into a database identified with the customer. The customer identifies himself to a dispensing site based computer which recognizes the blend and operates a blending and dispensing apparatus to dispense the desired quantity of blended fertilizer to the customer. A plurality of blends may be available to the customer.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: February 26, 2002
    Assignee: Northern Steel Industries
    Inventors: Douglas Snider, William Robb