Patents by Inventor Coleman W. Sims

Coleman W. Sims 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).

  • Multi-channel fluid injection system
    Patent number: 4424859
    Abstract: Method and apparatus for introducing fluid into a wellbore through use of a multi-channel conduit.
    Type: Grant
    Filed: November 4, 1981
    Date of Patent: January 10, 1984
    Inventors: Coleman W. Sims, W. P. Sims