Patents by Inventor Dean W. Kratzer

Dean W. Kratzer 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).

  • Publication number: 20210031135
    Abstract: An adsorbent bed, including at least one elementary composite structure that includes adsorbent particles in a polymer matrix, wherein the adsorbent bed has a bed packing, ?bed, defined as a volume occupied by the at least one elementary composite structure Vecs divided by a volume of the adsorbent bed Vbed where ?bed is greater than 0.60.
    Type: Application
    Filed: July 11, 2020
    Publication date: February 4, 2021
    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, Antoine PRUVOT, Federico BRANDANI, Matthew METZ, Elise RENOU
  • Publication number: 20210031168
    Abstract: An adsorbent bed, including at least one elementary composite structure that includes adsorbent particles in a polymer matrix, wherein the adsorbent bed has a bed packing, ?bed, defined as a volume occupied by the at least one elementary composite structure Vecs divided by a volume of the adsorbent bed Vbed where ?bed is greater than 0.60.
    Type: Application
    Filed: July 11, 2020
    Publication date: February 4, 2021
    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, Antoine PRUVOT, Matthew METZ
  • Publication number: 20210008523
    Abstract: An adsorbent bed, including at least one elementary composite structure that includes adsorbent particles in a polymer matrix, wherein the adsorbent bed has a bed packing, ?bed, defined as a volume occupied by the at least one elementary composite structure Vecs divided by a volume of the adsorbent bed Vbed where ?bed is greater than 0.60.
    Type: Application
    Filed: July 11, 2020
    Publication date: January 14, 2021
    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, Antoine PRUVOT, Matthew METZ
  • Patent number: 10821392
    Abstract: A composite fiber comprising sorbent particles (at 50 wt %) in a polymeric matrix that comprises a polymer or blend of polymers including at least one thermoplastic polymer, the extrudates being produced by thermal-induced phase separation or diffusion-induced phase separation from a dope suspension of the thermoplastic polymer, an optional solvent and the sorbent particles. The polymer or blend of polymers is able to withstand exposure to temperatures at or above 220° C. without experiencing significant detrimental effects upon the sorbent capacity of the sorbent particles. The fiber exhibits an elongation at break of at least 5%.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 3, 2020
    Assignees: 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, Sudhir S. Kulkarni, Edgar S. Sanders, Jr.
  • Publication number: 20200139292
    Abstract: A composite fiber comprising sorbent particles (at 50 wt %) in a polymeric matrix that comprises a polymer or blend of polymers including at least one thermoplastic polymer, the extrudates being produced by thermal-induced phase separation or diffusion-induced phase separation from a dope suspension of the thermoplastic polymer, an optional solvent and the sorbent particles. The polymer or blend of polymers is able to withstand exposure to temperatures at or above 220° C. without experiencing significant detrimental effects upon the sorbent capacity of the sorbent particles. The fiber exhibits an elongation at break of at least 5%.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 7, 2020
    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, Sudhir S. KULKARNI, Edgar S. SANDERS, JR.
  • 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: 10525400
    Abstract: A plurality of extrudates comprises sorbent particles (at 50 wt %) in a polymeric matrix that comprises a polymer or blend of polymers including at least one thermoplastic polymer, the extrudates being produced by thermal-induced phase separation or diffusion-induced phase separation from a dope suspension of the thermoplastic polymer, an optional solvent and the sorbent particles. The polymer or blend of polymers is able to withstand exposure to temperatures at or above 220° C. without experiencing significant detrimental effects upon the sorbent capacity of the sorbent particles.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: January 7, 2020
    Assignees: 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, Sudhir S. Kulkarni, Edgar S. Sanders, Jr.
  • Patent number: 10525399
    Abstract: A composite fiber comprising sorbent particles (at 50 wt %) in a polymeric matrix that comprises a polymer or blend of polymers including at least one thermoplastic polymer, the extrudates being produced by thermal-induced phase separation or diffusion-induced phase separation from a dope suspension of the thermoplastic polymer, an optional solvent and the sorbent particles. The polymer or blend of polymers is able to withstand exposure to temperatures at or above 220° C. without experiencing significant detrimental effects upon the sorbent capacity of the sorbent particles. The fiber exhibits an elongation at break of at least 5%.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: January 7, 2020
    Assignees: 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, Sudhir S. Kulkarni, Edgar S. Sanders, Jr.
  • Publication number: 20190203380
    Abstract: A solid adsorbent fiber includes a solid support fiber is enveloped by a solidified polymeric binder and also adsorbent particles.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Philippe A. COIGNET, Dean W. KRATZER
  • Publication number: 20190201869
    Abstract: A solid adsorbent fiber includes a solid support fiber that is enveloped by a solidified polymeric binder and also adsorbent particles.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Philippe A. COIGNET, Dean W. KRATZER
  • Patent number: 10315184
    Abstract: A bead comprised of a matrix of at least 50 wt % adsorbent particles and a thermoplastic polymer or a blend of thermoplastic polymers, the thermoplastic polymer or blend of thermoplastic polymers exhibiting a Vicat softening temperature of at least 240° C.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: June 11, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Philippe A. Coignet, Dean W. Kratzer, Sudhir S. Kulkarni, Edgar S. Sanders, Jr.
  • Publication number: 20190001276
    Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing, to a peak pyrolysis temperature TP, a hollow fiber membrane having a polymeric sheath surrounding a polymeric core, anti-substructure collapse particles present in pores formed in the polymeric core help prevent collapse of pores formed in the hollow fiber membrane before pyrolysis. The anti-substructure collapse particles are made of a material or materials that either: i) have a glass transition temperature TG higher than TP, ii) have a melting point higher than TP, or ii) are completely thermally decomposed during said pyrolysis step at a temperature less than TP. The anti-substructure collapse particles are not soluble in a solvent used for dissolution of the polymeric material of the core.
    Type: Application
    Filed: September 6, 2018
    Publication date: January 3, 2019
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Dean W. KRATZER, Madhava R. Kosuri, Canghai Ma
  • 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
  • Publication number: 20180296966
    Abstract: A composite fiber comprising sorbent particles (at 50 wt %) in a polymeric matrix that comprises a polymer or blend of polymers including at least one thermoplastic polymer, the extrudates being produced by thermal-induced phase separation or diffusion-induced phase separation from a dope suspension of the thermoplastic polymer, an optional solvent and the sorbent particles. The polymer or blend of polymers is able to withstand exposure to temperatures at or above 220° C. without experiencing significant detrimental effects upon the sorbent capacity of the sorbent particles. The fiber exhibits an elongation at break of at least 5%.
    Type: Application
    Filed: December 29, 2017
    Publication date: October 18, 2018
    Applicants: AIR LIQUIDE ADVANCED TECHNOLOGIES U.S. LLC.
    Inventors: Philippe A. Coignet, Dean W. Kratzer, Sudhir S. Kulkarni, Edgar S. Sanders, JR.
  • Publication number: 20180296967
    Abstract: A plurality of extrudates comprises sorbent particles (at 50 wt %) in a polymeric matrix that comprises a polymer or blend of polymers including at least one thermoplastic polymer, the extrudates being produced by thermal-induced phase separation or diffusion-induced phase separation from a dope suspension of the thermoplastic polymer, an optional solvent and the sorbent particles. The polymer or blend of polymers is able to withstand exposure to temperatures at or above 220° C. without experiencing significant detrimental effects upon the sorbent capacity of the sorbent particles.
    Type: Application
    Filed: December 29, 2017
    Publication date: October 18, 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, Sudhir S. Kulkarni, Edgar S. Sanders, JR.
  • Patent number: 10086337
    Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing, to a peak pyrolysis temperature TP, a hollow fiber membrane having a polymeric sheath surrounding a polymeric core, anti-substructure collapse particles present in pores formed in the polymeric core help prevent collapse of pores formed in the hollow fiber membrane before pyrolysis. The anti-substructure collapse particles are made of a material or materials that either: i) have a glass transition temperature TG higher than TP, ii) have a melting point higher than TP, or ii) are completely thermally decomposed during said pyrolysis step at a temperature less than TP. The anti-substructure collapse particles are not soluble in a solvent used for dissolution of the polymeric material of the core.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: October 2, 2018
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Dean W. Kratzer, Madhava R. Kosuri, Canghai Ma
  • 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.