Patents by Inventor Garth Shewchuk

Garth Shewchuk 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).

  • Publication number: 20150291874
    Abstract: Methods for using new general purpose foaming agents having application as drilling fluid foaming agents or as any foaming agent needed an a wide variety of applications is disclosed including at least one anionic surfactant, at least one cationic surfactant, and mixtures thereof and one or more zwitterionic compounds. The foaming agents can also include additive to augment the properties of the foaming agent for a given application.
    Type: Application
    Filed: March 18, 2015
    Publication date: October 15, 2015
    Inventors: Larry W. Gatlin, Garth Shewchuk, Colby P. Rodriguez
  • Patent number: 9018145
    Abstract: A new general purpose foaming agent having application as drilling fluid foaming agents or as any foaming agent needed an a wide variety of applications is disclosed, where the agent includes at least one anionic surfactant, at least one cationic surfactant, and mixtures thereof and one or more zwitterionic compounds. A method for using the foaming agent in capillary coiled tubing application is also disclosed. The foaming agents can also include additive to augment the properties of the foaming agent for a given application.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: April 28, 2015
    Assignee: Lubrizol Oilfield Solutions, Inc.
    Inventors: Larry W. Gatlin, Garth Shewchuk, Colby P. Rodriguez
  • Publication number: 20050137114
    Abstract: A new general purpose foaming agent having application as drilling fluid foaming agents or as any foaming agent needed an a wide variety of applications is disclosed, where the agent includes at least one anionic surfactant, at least one cationic surfactant, and mixtures thereof and one or more zwitterionic compounds. A method for using the foaming agent in capillary coiled tubing application is also disclosed. The foaming agents can also include additive to augment the properties of the foaming agent for a given application.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Larry Gatlin, Garth Shewchuk, Colby Rodriguez