Patents by Inventor Mark E. Waldo

Mark E. Waldo 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).

  • Penetrator bar for vertical tillage equipment
    Patent number: 7980318
    Abstract: A method and apparatus for pre-fracturing soil before the soil is cut by coulter wheels to achieve an improved cultivation apparatus wherein a penetrator bar is rotatably mounted on the front of a tillage implement and supports a plurality of adjustable S-tines for penetration of the soil prior to cultivation and resulting interaction of the fractured soil with the coulter blades.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: July 19, 2011
    Inventor: Mark E. Waldo