Patents by Inventor Matthew Littlejohn

Matthew Littlejohn 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).

  • METHOD FOR REMOVAL OF GUANIDINE COMPOUND FROM AQUEOUS MEDIA
    Publication number: 20070161821
    Abstract: Disclosed is a method for removing a neutral or an ionic guanidine compound from aqueous media optionally comprising an alkali metal halide, wherein the method is selected from the group consisting of (a) adsorption onto a carbonaceous adsorbent, (b) adsorption onto a clay adsorbent, (c) filtration through a nanofiltration membrane, and (d) removal of water and calcination.
    Type: Application
    Filed: March 12, 2007
    Publication date: July 12, 2007
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David Hall, Thomas Guggenheim, James Silva, Farid Khouri, Matthew Littlejohn, Balakrishnan Ganesan, Ashok Shyadligeri, Pradeep Nadkarni
  • Method for making salts hydroxy-substituted hydrocarbons
    Publication number: 20050049439
    Abstract: Disclosed is a method for preparing an alkali metal salt of a hydroxy-substituted hydrocarbon which comprises the steps of (i) contacting in solvent media at least one hydroxy-substituted hydrocarbon with a base comprising an alkali metal cation; and (ii) devolatilizing the solvent media comprising alkali metal salt by adding or spraying the solvent media into a substantially water-immiscible organic solvent, said solvent being at a temperature greater than the boiling point of solvent media at the prevailing pressure. In one embodiment the solvent media comprises water, and optionally at least one water-soluble protic organic solvent.
    Type: Application
    Filed: August 25, 2003
    Publication date: March 3, 2005
    Inventors: Thomas Guggenheim, Daniel Brunelle, David Woodruff, Lee Bergman, Norman Johnson, Matthew Littlejohn, Farid Khouri
  • Method for removal of guanidine compound from aqueous media
    Publication number: 20050029194
    Abstract: Disclosed is a method for removing a neutral or an ionic guanidine compound from an aqueous media optionally comprising an alkali metal halide, wherein the method is selected from the group consisting of (a) adsorption onto a carbonaceous adsorbent, (b) adsorption onto a clay adsorbent, (c) filtration through a nanofiltration membrane, and (d) removal of water and calcination.
    Type: Application
    Filed: December 22, 2003
    Publication date: February 10, 2005
    Inventors: David Hall, Thomas Guggenheim, James Silva, Farid Khouri, Matthew Littlejohn, Balakrishnan Ganesan, Ashok Shyadligeri, Pradeep Nadkarni