Patents by Inventor Raja Swaidan

Raja Swaidan 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: 10549244
    Abstract: One or more polymeric hollow fiber membranes are pyrolyzed to form one or more hollow fiber CMS membranes by directing a flow of pyrolysis gas through a polymeric membrane cartridge (including a porous center tube around which one or more green, polymeric, hollow fiber membranes is arranged) or a bundle of polymeric membranes (including a plurality of green, polymeric hollow fiber membranes oriented so that their ends are disposed with ends of the bundle) in a direction perpendicular to a length direction of the cartridge or bundle in order to sweep away off-gases that are formed during pyrolysis.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: February 4, 2020
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Philippe A. Coignet, Dean W. Kratzer, Raja Swaidan
  • Patent number: 10543462
    Abstract: One or more polymeric hollow fiber membranes are pyrolyzed to form one or more hollow fiber CMS membranes by directing a flow of pyrolysis gas through a bundle of polymeric membranes (including a plurality of green, polymeric hollow fiber membranes oriented so that their ends are disposed with ends of the bundle) in a direction perpendicular to a length direction of the bundle in order to sweep away off-gases that are formed during pyrolysis.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: January 28, 2020
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Philippe A. Coignet, Dean W. Kratzer, Raja Swaidan
  • Patent number: 10183258
    Abstract: Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the spin dope composition used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 22, 2019
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Raja Swaidan, David J. Hasse, Madhava R. Kosuri, Canghai Ma, Robert A. Gagliano, Henri Chevrel
  • Patent number: 10143973
    Abstract: Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the bore fluid used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: December 4, 2018
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Raja Swaidan, David J. Hasse, Madhava R. Kosuri, Canghai Ma, Robert A. Gagliano, Henri Chevrel, Dean W. Kratzer
  • Patent number: 10112149
    Abstract: Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the spin dope composition used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 30, 2018
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Raja Swaidan, David J. Hasse, Madhava R. Kosuri, Canghai Ma, Robert A. Gagliano, Henri Chevrel
  • Publication number: 20180161736
    Abstract: One or more polymeric hollow fiber membranes are pyrolyzed to form one or more hollow fiber CMS membranes by directing a flow of pyrolysis gas through a polymeric membrane cartridge (including a porous center tube around which one or more green, polymeric, hollow fiber membranes is arranged) or a bundle of polymeric membranes (including a plurality of green, polymeric hollow fiber membranes oriented so that their ends are disposed with ends of the bundle) in a direction perpendicular to a length direction of the cartridge or bundle in order to sweep away off-gases that are formed during pyrolysis.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 14, 2018
    Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Philippe A. COIGNET, Dean W. KRATZER, Raja SWAIDAN
  • Publication number: 20180161731
    Abstract: One or more polymeric hollow fiber membranes are pyrolyzed to form one or more hollow fiber CMS membranes by directing a flow of pyrolysis gas through a bundle of polymeric membranes (including a plurality of green, polymeric hollow fiber membranes oriented so that their ends are disposed with ends of the bundle) in a direction perpendicular to a length direction of the bundle in order to sweep away off-gases that are formed during pyrolysis.
    Type: Application
    Filed: December 29, 2016
    Publication date: June 14, 2018
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Philippe A. COIGNET, Dean W. KRATZER, Raja SWAIDAN
  • Publication number: 20180161732
    Abstract: One or more polymeric hollow fiber membranes are pyrolyzed to form one or more hollow fiber CMS membranes by directing a flow of pyrolysis gas through a polymeric membrane cartridge (including a porous center tube around which one or more green, polymeric, hollow fiber membranes is arranged) or a bundle of polymeric membranes (including a plurality of green, polymeric hollow fiber membranes oriented so that their ends are disposed with ends of the bundle) in a direction perpendicular to a length direction of the cartridge or bundle in order to sweep away off-gases that are formed during pyrolysis.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 14, 2018
    Applicants: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Air Liquide Advanced Technologies U.S. LLC
    Inventors: Philippe A. COIGNET, Dean W. KRATZER, Raja SWAIDAN, Edgar S. SANDERS, JR.
  • Patent number: 9944751
    Abstract: Embodiments of the present disclosure provide for a triptycene-based A-B monomer, a method of making a triptycene-based A-B monomer, a triptycene-based ladder polymer, a method of making a triptycene-based ladder polymers, a method of using triptycene-based ladder polymers, a structure incorporating triptycene-based ladder polymers, a method of gas separation, and the like.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: April 17, 2018
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ingo Pinnau, Bader Ghanem, Raja Swaidan
  • Publication number: 20180001270
    Abstract: Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the bore fluid used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Raja SWAIDAN, David J. HASSE, Madhava R. KOSURI, Canghai MA, Robert A. GAGLIANO, Henri CHEVREL, Dean W. KRATZER
  • Publication number: 20180001269
    Abstract: Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the spin dope composition used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Raja SWAIDAN, David J. HASSE, Madhava R. KOSURI, Canghai MA, Robert A. GAGLIANO, Henri CHEVREL
  • Publication number: 20180001272
    Abstract: Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the spin dope composition used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Inventors: Raja SWAIDAN, David J. HASSE, Madhava R. KOSURI, Canghai MA, Robert A. GAGLIANO, Henri CHEVREL
  • Publication number: 20180001271
    Abstract: Metallopolyimide precursor fibers for aging-resistant carbon molecular sieve hollow fiber membranes having enhanced selectivity include transition metal cations complexed with electronegative regions of a polyimide. CMS membranes are made by pyrolyzing the metallopolyimide precursor fibers. The cations are introduced by including, in the spin dope composition used to extrude the fibers, either a salt of the transition metal and an inorganic anion or a transition metal/organic ligand complex.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Raja SWAIDAN, David J. HASSE, Madhava R. KOSURI, Canghai MA, Robert A. GAGLIANO, Henri CHEVREL
  • Patent number: 9795927
    Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing a polymeric precursor membrane in a pyrolysis atmosphere containing a sulfur-containing compound.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 24, 2017
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges
    Inventors: Henri Chevrel, Benjamin J. Jurcik, Jr., Philippe A. Coignet, Raja Swaidan, Dean W. Kratzer
  • Patent number: 9751985
    Abstract: A triptycene-based monomer, a method of making a triptycene-based monomer, a triptycene-based aromatic polyimide, a method of making a triptycene-based aromatic polyimide, methods of using triptycene-based aromatic polyimides, structures incorporating triptycene-based aromatic polyimides, and methods of gas separation are provided. Embodiments of the triptycene-based monomers and triptycene-based aromatic polyimides have high permeabilities and excellent selectivities. Embodiments of the triptycene-based aromatic polyimides have one or more of the following characteristics: intrinsic microporosity, good thermal stability, and enhanced solubility. In an exemplary embodiment, the triptycene-based aromatic polyimides are microporous and have a high BET surface area. In an exemplary embodiment, the triptycene-based aromatic polyimides can be used to form a gas separation membrane.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: September 5, 2017
    Assignee: King Abdullah University of Science and Technology
    Inventors: Bader Ghanem, Ingo Pinnau, Raja Swaidan
  • Publication number: 20160367935
    Abstract: A method for making a defect-free carbon molecular sieve (CMS) fiber membrane with an enhanced selectivity and aging resistance includes the steps of fabricating the CMS fiber membrane by pyrolyzing a polymer precursor, coating a thin layer of the silicone rubber on the CMS fiber membrane with the silicone rubber solution and drying the coated CMS fiber membrane to remove the organic solvent. The silicone rubber may be a poly(siloxane) containing repeating units of the moiety of the following formula: wherein R1 and R2 each is independently selected from the group consisting of an H, a C1-C20 aliphatic group, a C3-C20 aromatic group, and a C1-C8 saturated or unsaturated alkoxy group. The silicone rubber may be PDMS.
    Type: Application
    Filed: August 31, 2016
    Publication date: December 22, 2016
    Inventors: Canghai MA, Madhava Kosuri, Tao Li, Dean Kratzer, Raja Swaidan
  • Publication number: 20160184775
    Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing a polymeric precursor membrane in a pyrolysis atmosphere containing a sulfur-containing compound.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 30, 2016
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Henri CHEVREL, Benjamin J. JURCIK, JR., Philippe A. COIGNET, Raja SWAIDAN, Dean W. KRATZER
  • Publication number: 20160168325
    Abstract: Embodiments of the present disclosure provide for a triptycene-based A-B monomer, a method of making a triptycene-based A-B monomer, a triptycene-based ladder polymer, a method of making a triptycene-based ladder polymers, a method of using triptycene-based ladder polymers, a structure incorporating triptycene-based ladder polymers, a method of gas separation, and the like.
    Type: Application
    Filed: July 23, 2014
    Publication date: June 16, 2016
    Inventors: Ingo Pinnau, Bader Ghanem, Raja Swaidan
  • Publication number: 20160102177
    Abstract: A triptycene-based monomer, a method of making a triptycene-based monomer, a triptycene-based aromatic polyimide, a method of making a triptycene-based aromatic polyimide, methods of using triptycene-based aromatic polyimides, structures incorporating triptycene-based aromatic polyimides, and methods of gas separation are provided. Embodiments of the triptycene-based monomers and triptycene-based aromatic polyimides have high permeabilities and excellent selectivities. Embodiments of the triptycene-based aromatic polyimides have one or more of the following characteristics: intrinsic microporosity, good thermal stability, and enhanced solubility. In an exemplary embodiment, the triptycene-based aromatic polyimides are microporous and have a high BET surface area. In an exemplary embodiment, the triptycene-based aromatic polyimides can be used to form a gas separation membrane.
    Type: Application
    Filed: June 9, 2014
    Publication date: April 14, 2016
    Inventors: Bader Ghanem, Ingo Pinnau, Raja Swaidan