Patents by Inventor Alessandra Lazzarotti

Alessandra Lazzarotti 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: 11591587
    Abstract: The present invention provides a process for the production of human plasminogen starting from human plasma or a fractionation intermediate thereof. The main stages of the process are: a step of virus inactivation, in which human plasma is contacted with a solvent/detergent mixture, a single affinity chromatographic step and a virus removal nanofiltration step. This process is scalable up to industrial level and it provides, without adding any protease inhibitor, a functional and intact finished product suitable to be administered for the treatment of human diseases due to genetic plasminogen deficiency.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: February 28, 2023
    Assignee: KEDRION S.P.A.
    Inventors: Ester Ascione, Claudio Farina, Alessandra Lazzarotti, Marcella Maddaluno, Claudia Nardini
  • Publication number: 20190330611
    Abstract: The present invention provides a process for the production of human plasminogen starting from human plasma or a fractionation intermediate thereof. The main stages of the process are: a step of virus inactivation, in which human plasma is contacted with a solvent/detergent mixture, a single affinity chromatographic step and a virus removal nanofiltration step. This process is scalable up to industrial level and it provides, without adding any protease inhibitor, a functional and intact finished product suitable to be administered for the treatment of human diseases due to genetic plasminogen deficiency.
    Type: Application
    Filed: September 12, 2017
    Publication date: October 31, 2019
    Inventors: Ester ASCIONE, Claudio FARINA, Alessandra LAZZAROTTI, Marcella MADDALUNO, Claudia NARDINI
  • Patent number: 8933204
    Abstract: The invention relates to a novel, industrial-scale process for the purification of gamma-immunoglobulins (IgG) starting from plasma or fractions thereof. The method involves two chromatographic steps, i.e. a cation exchange capture chromatography, and then a polishing anion exchange chromatography, ensuring a highly purified end product, which contains no aggregates, and high yields. The process also involves a virus inactivation step by means of a solvent/detergent treatment to inactivate the viruses with a lipid envelope, and a virus removal step by nanofiltering to ensure the removal of the non-enveloped viruses.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: January 13, 2015
    Assignee: Kedrion S.p.A.
    Inventors: Claudia Nardini, Andrea Morelli, Claudio Farina, Sabrina Esposito, Alessandra Lazzarotti, Arianna Petrucci
  • Publication number: 20120316323
    Abstract: The invention relates to a novel, industrial-scale process for the purification of gamma-immunoglobulins (IgG) starting from plasma or fractions thereof. The method involves two chromatographic steps, i.e. a cation exchange capture chromatography, and then a polishing anion exchange chromatography, ensuring a highly purified end product, which contains no aggregates, and high yields. The process also involves a virus inactivation step by means of a solvent/detergent treatment to inactivate the viruses with a lipid envelope, and a virus removal step by nanofiltering to ensure the removal of the non-enveloped viruses.
    Type: Application
    Filed: December 28, 2010
    Publication date: December 13, 2012
    Inventors: Claudia Nardini, Andrea Morelli, Claudio Farina, Sabrina Esposito, Alessandra Lazzarotti, Arianna Petrucci