Patents by Inventor Steven Langley

Steven Langley 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).

  • Patent number: 11325878
    Abstract: Embodiments described herein provide a method, comprising reducing pH of a glycol vaporization separator purge stream to form an acid stream; distilling the acid stream to form an overhead stream and a bottoms stream; and recycling the bottoms stream to the vaporization separator.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 10, 2022
    Assignee: CAMERON INTERNATIONAL CORPORATION
    Inventor: Steven Langley
  • Publication number: 20210078928
    Abstract: Embodiments described herein provide a method, comprising reducing pH of a glycol vaporization separator purge stream to form an acid stream; distilling the acid stream to form an overhead stream and a bottoms stream; and recycling the bottoms stream to the vaporization separator.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 18, 2021
    Applicant: Schlumberger Technology Corporation
    Inventor: Steven Langley
  • Patent number: 10144686
    Abstract: A system and method for removing acetic acid and other short chain fatty acids described as organic acid from a rich mono-ethylene glycol (“MEG”) solution does so by stripping the organic acid from the rich MEG solution by contacting the solution with a gas, the gas being nitrogen or a fuel gas such as methane; and stripping the organic acid from the gas by contacting the gas with a caustic solution such as a dilute sodium hydroxide solution. The stripping steps take place in respective stripping columns. A portion of the gas exiting the gas/organic acid stripping column can be recycled to the MEG/organic acid stripping column to reduce total gas usage. A portion of the waste stream exiting the gas/organic acid stripping column can be recycled back to the gas/organic acid stripping column to reduce the amount of caustic solution used as well as the amount of waste.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: December 4, 2018
    Assignee: Cameron Solutions, Inc.
    Inventors: Steven Langley, David John Knight
  • Publication number: 20180029963
    Abstract: A system and method for removing acetic acid and other short chain fatty acids described as organic acid from a rich mono-ethylene glycol (“MEG”) solution does so by stripping the organic acid from the rich MEG solution by contacting the solution with a gas, the gas being nitrogen or a fuel gas such as methane; and stripping the organic acid from the gas by contacting the gas with a caustic solution such as a dilute sodium hydroxide solution. The stripping steps take place in respective stripping columns. A portion of the gas exiting the gas/organic acid stripping column can be recycled to the MEG/organic acid stripping column to reduce total gas usage. A portion of the waste stream exiting the gas/organic acid stripping column can be recycled back to the gas/organic acid stripping column to reduce the amount of caustic solution used as well as the amount of waste.
    Type: Application
    Filed: August 11, 2017
    Publication date: February 1, 2018
    Inventors: Steven Langley, David John Knight
  • Patent number: 9732019
    Abstract: A system and method for removing acetic acid and other short chain fatty acids described as organic acid from a rich mono-ethylene glycol (“MEG”) solution does so by stripping the organic acid from the rich MEG solution by contacting the solution with a gas, the gas being nitrogen or a fuel gas such as methane; and stripping the organic acid from the gas by contacting the gas with a caustic solution such as a dilute sodium hydroxide solution. The stripping takes place in respective stripping columns. A portion of the gas exiting the gas/organic acid stripping column can be recycled to the MEG/organic acid stripping column to reduce total gas usage. A portion of the waste stream exiting the gas/organic acid stripping column can be recycled back to the gas/organic acid stripping column to reduce the amount of caustic solution used as well as the amount of waste.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 15, 2017
    Assignee: Cameron Solutions, Inc.
    Inventors: Steven Langley, David John Knight
  • Patent number: 7809701
    Abstract: A method and system to perform exact match searches for fixed- or variable-length keys stored in a search database. The method is implemented using a plurality of hash tables, each indexed using an independent hash function. A system implementing this method provides deterministic search time, independent of the number of keys in the search database. The method permits two basic implementations; one which minimizes memory storage, and another which minimizes search time. The latter requires only two memory accesses to locate a key.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: October 5, 2010
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Steven Langley Blake
  • Publication number: 20090097654
    Abstract: A method and system to perform exact match searches for fixed- or variable-length keys stored in a search database. The method is implemented using a plurality of hash tables, each indexed using an independent hash function. A system implementing this method provides deterministic search time, independent of the number of keys in the search database. The method permits two basic implementations; one which minimizes memory storage, and another which minimizes search time. The latter requires only two memory accesses to locate a key.
    Type: Application
    Filed: October 15, 2007
    Publication date: April 16, 2009
    Inventor: Steven Langley Blake
  • Publication number: 20080304503
    Abstract: A traffic manager and a method are described herein that are capable of performing an active queue management of discard-eligible traffic for a shared memory device (with a per-CoS switching fabric) that provides fair per-class backpressure indications.
    Type: Application
    Filed: June 5, 2007
    Publication date: December 11, 2008
    Inventor: Steven Langley Blake