Patents by Inventor Berlyn R. Mellein

Berlyn R. Mellein 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).

  • Carbon dioxide removal and ionic liquid compounds useful therein
    Patent number: 8721770
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker; and to methods of carbon dioxide removal in which they may be used.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: May 13, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter, Mark Brandon Shiflett
  • Functionalized N-substituted pyrrolidonium ionic liquids
    Patent number: 8350056
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: January 8, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • N-substituted pyrrolidonium ionic liquids
    Patent number: 8138354
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I: wherein: (a) Z is —(CH2)n—, wherein n is an integer from 2 to 12; (b) R2. R3 and R4 are each independently H or a C1 to C6 straight-chain or branched alkyl group; and (c) A? is levulinate, [CF3—O—CFHCF2SO3]?, [CF3CF2OCFHCF2SO3]?, or [CF3CF2CF2OCFHCF2SO3]?.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 20, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • Functionalized N-substituted pyrrolidonium ionic liquids
    Patent number: 8119818
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: February 21, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • IONIC COMPOUNDS IN LITHIUM BROMIDE/WATER ABSORPTION CYCLE SYSTEMS
    Publication number: 20120011886
    Abstract: Disclosed herein are compositions comprising lithium bromide, water, and at least one ionic compound. These compositions are useful as working fluids in absorption cycle systems. The ionic compound additive has been demonstrated to reduce crystallization in such absorption cycle systems.
    Type: Application
    Filed: March 31, 2010
    Publication date: January 19, 2012
    Inventors: Mark Brandon Shiflett, Konstantinos Kontomaris, Steven Raymond Lustig, Mark A. Scialdone, Megan Quigley, Berlyn R. Mellein
  • CARBON DIOXIDE REMOVAL AND IONIC LIQUID COMPOUNDS USEFUL THEREIN
    Publication number: 20110296993
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker; and to methods of carbon dioxide removal in which they may be used.
    Type: Application
    Filed: December 4, 2009
    Publication date: December 8, 2011
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter, Mark Brandon Shiflett
  • ABSORPTION CYCLE UTILIZING IONIC COMPOUNDS AND/OR NON-IONIC ABSORBENTS AS WORKING FLUIDS
    Publication number: 20110203301
    Abstract: This invention relates to compositions comprising a refrigerant and at least one ionic compound and/or non-ionic absorbent, and also to devices capable of executing an absorption cycle using such compositions as a refrigerant pair. This invention also provides methods and apparatus for cooling using an absorption cycle comprising a refrigerant, and at least one ionic compound and/or non-ionic absorbent as the absorbent.
    Type: Application
    Filed: November 6, 2009
    Publication date: August 25, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Foo, Konstantinos Kontomaris, Steven Raymond Lustig, Dennis A. Redder, Mark A. Scialdone, Mark Brandon Shiflett, Berlyn R. Mellein, Megan Quigley
  • FUNCTIONALIZED N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20110137048
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Application
    Filed: June 2, 2010
    Publication date: June 9, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • FUNCTIONALIZED N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20100145074
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Inventors: THOMAS FOO, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20100145073
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I: wherein: (a) Z is —(CH2)n—, wherein n is an integer from 2 to 12; (b) R2, R3 and R4 are each independently H or a C1 to C6 straight-chain or branched alkyl group; and (c) A?is levulinate, —[CF3—O—CFHCF2SO3]—, [CF3CF2OCFHCF2SO3]—, or [CF3CF2CF2OCFHCF2SO3]—.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Inventors: THOMAS FOO, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter