Patents by Inventor Robert Plpkin

Robert Plpkin 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 Apparatuses for Releasing a Chemical into a Well Bore Upon Command
    Publication number: 20110042082
    Abstract: Methods and apparatuses for releasing a chemical in a well bore are disclosed. One apparatus includes a casing collar configured to couple to a casing string. A chemical container is disposed within the casing collar, and the casing collar is configured to release the chemical from the chemical reservoir.
    Type: Application
    Filed: August 24, 2009
    Publication date: February 24, 2011
    Inventors: Roger L. Schultz, Gary P. Funkhouser, Robert Plpkin