Patents by Inventor Marjaana Rättö

Marjaana Rättö 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).

  • Esterases and their use
    Patent number: 8546115
    Abstract: The present invention relates to polyesterases having cutinase and/or suberinase activity obtainable from Coprinus and Trichoderma. The invention further relates to a method for producing the polyesterases, and to polynucleotides, vectors and host cells used therein. The enzymes are useful in hydrolysing cutin, suberin and other polyesters for example in treating agricultural or food raw materials, or wood raw materials, pulp and paper products and waste, and in modifying polyester fibers, or in laundry and dish applications.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: October 1, 2013
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Johanna Buchert, Tiina Nakari-Setälä, Pasi Halonen, Hanna Kontkanen, Ann Westerholm-Parvinen, Marjaana Rättö
  • NOVEL ESTERASES AND THEIR USE
    Publication number: 20100209985
    Abstract: The present invention relates to polyesterases having cutinase and/or suberinase activity obtainable from Coprinus and Trichoderma. The invention further relates to a method for producing the polyesterases, and to polynucleotides, vectors and host cells used therein. The enzymes are useful in hydrolysing cutin, suberin and other polyesters for example in treating agricultural or food raw materials, or wood raw materials, pulp and paper products and waste, and in modifying polyester fibers, or in laundry and dish applications.
    Type: Application
    Filed: July 8, 2007
    Publication date: August 19, 2010
    Applicant: Valtion Teknillinen Tutkimuskeskus
    Inventors: Johanna Buchert, Tiina Nakari-Setälä, Pasi Halonen, Hanna Kontkanen, Ann Westerholm-Parvinen, Marjaana Rättö
  • Laccase enzyme and the gene encoding the enzyme
    Patent number: 7183090
    Abstract: The invention relates to a new laccase enzyme, which can be isolated from the strains of the Melanocarpus genus, the M. albomyces strain in particular. The pH optimum of the enzyme is within 5–8 and the enzyme works at a temperature of 30–80° C. The isoelectric point of the enzyme is about 4.0 as determined by isoelectric focusing and the molecular weight about 80 kDa, defined by SDS-PAGE. The enzyme is especially well suited to applications, wherein the pH and temperature conditions are high. The invention also relates to a gene that encodes laccase enzyme, and a laccase enzyme produced by recombinant technology.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: February 27, 2007
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Kristiina Kruus, Laura-Leena Kiiskinen, Marjaana Rättö, Liisa Viikari, Markku Saloheimo