Patents by Inventor Dwayne Emfinger

Dwayne Emfinger 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).

  • Method and apparatus for cutting off a well
    Patent number: 7686083
    Abstract: A method and apparatus for cutting off a well which includes hydraulic rams, a sharp blade and a supporting structure that surrounds the well and holds it in place while the hydraulic rams and sharp beveled blade shears the well and cuts it off. The entire apparatus is operated with an hydraulic system and can be lifted over any well with a crane.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: March 30, 2010
    Inventor: Dwayne Emfinger