Patents by Inventor Glen E. Walden

Glen E. Walden 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).

  • Crosslinking composition for hydrocarbon gels
    Patent number: 8993492
    Abstract: A crosslinking composition for hydrocarbon gels containing phosphate ester gelling agents comprising a modified imidazoline or pyrimidine including an alkyl group (or unsaturated carbon chain) or of 10 to 22 carbon atoms, a polyamine, and ferric sulfate. The method of making the crosslinking agent features adding the polyamine after reaction of the other ingredients; unique gels formed with the crosslinking agent are particularly effective for LNG at very cold temperatures.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: March 31, 2015
    Assignee: CST Performance Products Corp.
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan
  • Low temperature hydrocarbon gel II
    Patent number: 8951941
    Abstract: A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (?)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: February 10, 2015
    Assignee: CST Performance Products Corp.
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin
  • Breaking pumpable hydrocarbon gels
    Patent number: 8707978
    Abstract: Where the loss of volatile organics during storage of high gravity oil is minimized by forming a flowable or pumpable gel in the high gravity oil, (and/or condensates and distillates), as they are introduced to a storage vessel, the gel is broken by the addition of a small amount of an amine/formaldehyde reaction product, which may be either a triazine or a mixture of non-triazine reaction products. The previously gelled hydrocarbon may then by more readily moved by draining or pumping into a pipeline.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: April 29, 2014
    Assignee: CST Performance Products Corp.
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin, Wayne Mueller
  • Crosslinking Composition for Hydrocarbon Gels
    Publication number: 20140051611
    Abstract: A crosslinking composition for hydrocarbon gels containing phosphate ester gelling agents comprising a modified imidazoline or pyrimidine including an alkyl group (or unsaturated carbon chain) or of 10 to 22 carbon atoms, a polyamine, and ferric sulfate. The method of making the crosslinking agent features adding the polyamine after reaction of the other ingredients; unique gels formed with the crosslinking agent are particularly effective for LNG at very cold temperatures.
    Type: Application
    Filed: August 14, 2012
    Publication date: February 20, 2014
    Inventors: Larry W. Gatlin, Glen E. Walden, Emest McMillan
  • Low temperature hydrocarbon gel
    Patent number: 8513166
    Abstract: A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (?)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: August 20, 2013
    Assignee: Conlen Surfactant Technology, Inc.
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin
  • Breaking pumpable hydrocarbon gels
    Publication number: 20130081819
    Abstract: Where the loss of volatile organics during storage of high gravity oil is minimized by forming a flowable or pumpable gel in the high gravity oil, (and/or condensates and distillates), as they are introduced to a storage vessel, the gel is broken by the addition of a small amount of an amine/formaldehyde reaction product, which may be either a triazine or a mixture of non-triazine reaction products. The previously gelled hydrocarbon may then by more readily moved by draining or pumping into a pipeline.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin, Wayne Mueller
  • Low temperature hydrocarbon gel II
    Publication number: 20120000661
    Abstract: A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (?)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition.
    Type: Application
    Filed: June 27, 2011
    Publication date: January 5, 2012
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin
  • Low temperature hydrocarbon gel
    Publication number: 20120000660
    Abstract: A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (?)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 5, 2012
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin