Patents by Inventor Annika Pohl

Annika Pohl 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: 8372469
    Abstract: A method for producing a biocompatible material of the formula NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: February 12, 2013
    Assignee: St. Jude Medical AB
    Inventors: Tom Eriksson, Kenth Nilsson, Anna-Karin Johansson, Karin Lungstrom, Koroush Lashgari, Annika Pohl, Gunnar Westin
  • Publication number: 20120289807
    Abstract: A method for producing a biocompatible material of the formula NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 15, 2012
    Applicant: ST. JUDE MEDICAL AB
    Inventors: Tom ERIKSSON, Kenth NILSSON, Anna-Karin JOHANSSON, Karin LUNGSTRÖM, Koroush LASHGARI, Annika POHL, Gunnar WESTIN
  • Publication number: 20120282451
    Abstract: A method for producing a biocompatible material of the formula NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 8, 2012
    Applicant: ST. JUDE MEDICAL AB
    Inventors: Tom ERIKSSON, Kenth NILSSON, Anna-Karin JOHANSSON, Karin LJUNGSTRÖM, Koroush LASHGARI, Annika POHL, Gunnar WESTIN
  • Publication number: 20120276279
    Abstract: A method for producing a biocompatible material of the formula NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 1, 2012
    Applicant: ST. JUDE MEDICAL AB
    Inventors: Tom Eriksson, Kenth Nilsson, Anna-Karin Johansson, Karin Lungstrom, Koroush Lashgari, Annika Pohl, Gunnar Westin
  • Patent number: 8246929
    Abstract: A method for producing a biocompatible material of the formula NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: August 21, 2012
    Assignee: St. Jude Medical AB
    Inventors: Tom Eriksson, Kenth Nilsson, Anna-Karin Johansson, Karin Ljungström, Koroush Lashgari, Annika Pohl, Gunnar Westin
  • Patent number: 8034152
    Abstract: A novel solution route has been developed that after heat-treatment to 500-600° C. under inert atmosphere, yields highly porous composites of nano-sized metal (Ni) particle inclusions in ceramics (Al2O3). Metal loadings could be made from <1% to >95% Ni. The metal inclusion sizes in the Ni—Al2O3 system with the 10 atom % Ni sample were 4-7 nm, while for the 75 atom % Ni sample they were 5-8 nm. It was shown that the 10 atom % Ni sample could be used as a catalyst for the conversion of CO2 and CH4 in the temperature range 550-700° C., while higher temperatures led to growth of the Ni particles and carbon poisoning over time. The solution routes could also be deposited as thin dense films containing <10 nm Ni particles. Such films with high Ni-particle loadings deposited on aluminium substrates have shown very good solar heat absorber proficiency and provide good substrates for carbon tube growth.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: October 11, 2011
    Inventors: Gunnar Westin, Annika Pohl, Asa Ekstrand
  • Publication number: 20100227187
    Abstract: A novel solution route has been developed that after heat-treatment to 500-600° C. under inert atmosphere, yields highly porous composites of nano-sized metal (Ni) particle inclusions in ceramics (Al2O3). Metal loadings could be made from <1% to >95% Ni. The metal inclusion sizes in the Ni—Al2O3 system with the 10 atom % Ni sample were 4-7 nm, while for the 75 atom % Ni sample they were 5-8 nm. It was shown that the 10 atom % Ni sample could be used as a catalyst for the conversion of CO2 and CH4 in the temperature range 550-700° C., while higher temperatures led to growth of the Ni particles and carbon poisoning over time. The solution routes could also be deposited as thin dense films containing <10 nm Ni particles. Such films with high Ni-particle loadings deposited on aluminium substrates have shown very good solar heat absorber proficiency and provide good substrates for carbon tube growth.
    Type: Application
    Filed: May 21, 2010
    Publication date: September 9, 2010
    Applicant: SUNSTRIP AB
    Inventors: GUNNAR WESTIN, Annika Pohl, Asa Ekstrand
  • Patent number: 7740814
    Abstract: A novel solution route has been developed that after heat-treatment to 500-600° C. under inert atmosphere, yields highly porous composites of nano-sized metal (Ni) particle inclusions in ceramics (Al2O3). Metal loadings could be made from <1% to >95% Ni. The metal inclusion sizes in the Ni—Al2O3 system with the 10 atom % Ni sample were 4-7 nm, while for the 75 atom % Ni sample they were 5-8 nm. It was shown that the 10 atom % Ni sample could be used as a catalyst for the conversion of CO2 and CH4 in the temperature range 550-700° C., while higher temperatures led to growth of the Ni particles and carbon poisoning over time. The solution routes could also be deposited as thin dense films containing <10 nm Ni particles. Such films with high Ni-particle loadings deposited on aluminium substrates have shown very good solar heat absorber proficiency and provide good substrates for carbon tube growth.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: June 22, 2010
    Inventors: Gunnar Westin, Annika Pohl, Åsa Ekstrand
  • Publication number: 20090177049
    Abstract: A method for producing a biocompatible material of the formula NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1 includes the steps of a) providing a Na-precursor and a K-precursor for NaxKyNbO3, b) mixing the precursors in solution wherein said precursors first react to form a sol and thereafter a gel, c) heat treating the gel to obtain an oxide of the material NaxKyNbO3, 0?x?0.8, 0.2?y?1, x+y=1. The material can be produced as a film, and the material or film can be provided on the exterior surface of a medical implant that will come into contact with body tissue and/or body fluids upon implantation thereof.
    Type: Application
    Filed: May 31, 2005
    Publication date: July 9, 2009
    Inventors: Tom Eriksson, Kenth Nilsson, Anna-Karin Johansson, Karin Ljungstrom, Koroush Lashgari, Annika Pohl, Gunnar Westin
  • Publication number: 20080146440
    Abstract: A novel solution route has been developed that after heat-treatment to 500-600° C. under inert atmosphere, yields highly porous composites of nano-sized metal (Ni) particle inclusions in ceramics (Al2O3). Metal loadings could be made from <1% to >95% Ni. The metal inclusion sizes in the Ni-Al2O3 system with the 10 atom % Ni sample were 4-7 nm, while for the 75 atom % Ni sample they were 5-8 nm. It was shown that the 10 atom % Ni sample could be used as a catalyst for the conversion of CO2 and CH4 in the temperature range 550-700° C., while higher temperatures led to growth of the Ni particles and carbon poisoning over time. The solution routes could also be deposited as thin dense films containing <10 nm Ni particles. Such films with high Ni-particle loadings deposited on aluminium substrates have shown very good solar heat absorber proficiency and provide good substrates for carbon tube growth.
    Type: Application
    Filed: January 3, 2006
    Publication date: June 19, 2008
    Applicant: SUNSTRIP AB
    Inventors: Gunnar Westin, Annika Pohl, Asa Ekstrand