Patents by Inventor Leena Valmu

Leena Valmu 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: 11442064
    Abstract: The present invention includes a novel method and system for identification of microorganisms in samples that proteins and other biological material from non-microorganism sources (e.g., proteins of mammalian origin) that can interfere with identification of the microorganisms. The methods and systems described herein include use of a single-use chromatography medium to purify intact proteins prior to mass spectrometry analysis. The chromatography medium and the methods described herein can rapidly and efficiently remove of a substantial portion of interfering biological material (e.g., mammalian proteins) from a crude cell lysate while preserving high signal strength and removing enough of the interfering protein(s) to allow for identification of the microorganism(s) by mass spectrometry analysis.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 13, 2022
    Assignee: Thermo Fisher Scientific OY
    Inventors: Mikko Koskinen, Leena Valmu, Joni Rannisto, Kelly Flook, Roger Grist, Anssi Rantakari
  • Publication number: 20190212338
    Abstract: The present invention includes a novel method and system for identification of microorganisms in samples that proteins and other biological material from non-microorganism sources (e.g., proteins of mammalian origin) that can interfere with identification of the microorganisms. The methods and systems described herein include use of a single-use chromatography medium to purify intact proteins prior to mass spectrometry analysis. The chromatography medium and the methods described herein can rapidly and efficiently remove of a substantial portion of interfering biological material (e.g., mammalian proteins) from a crude cell lysate while preserving high signal strength and removing enough of the interfering protein(s) to allow for identification of the microorganism(s) by mass spectrometry analysis.
    Type: Application
    Filed: August 24, 2017
    Publication date: July 11, 2019
    Inventors: Mikko KOSKINEN, Leena VALMU, Joni RANNISTO, Kelly FLOOK, Roger GRIST, Anssi RANTAKARI
  • Patent number: 9696284
    Abstract: Described are extraction columns and systems that include extraction columns. The extraction column includes a column body that has a reservoir portion, an extraction media portion, and a collar portion. The reservoir portion includes an inlet and a reservoir. The extraction media portion includes an elongated sleeve having an inner surface defining a cavity. The extraction media portion has an inlet end in fluid communication with the reservoir and an outlet end. An extraction medium is disposed in the cavity of the elongated sleeve. The collar portion extends axially in a common direction with the elongated sleeve. The collar portion has a terminal end which is spaced apart from the outlet end of the elongated sleeve and which extends axially at least to a plane defined by the outlet end of the elongated sleeve.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: July 4, 2017
    Assignee: Thermo Fisher Scientific Oy
    Inventors: Joni Rannisto, Kelly Flook, Leena Valmu, Ville Saarainen, Suvi Ravela, Johan Finell
  • Publication number: 20160363565
    Abstract: Described are extraction columns and systems that include extraction columns. The extraction column includes a column body that has a reservoir portion, an extraction media portion, and a collar portion. The reservoir portion includes an inlet and a reservoir. The extraction media portion includes an elongated sleeve having an inner surface defining a cavity. The extraction media portion has an inlet end in fluid communication with the reservoir and an outlet end. An extraction medium is disposed in the cavity of the elongated sleeve. The collar portion extends axially in a common direction with the elongated sleeve. The collar portion has a terminal end which is spaced apart from the outlet end of the elongated sleeve and which extends axially at least to a plane defined by the outlet end of the elongated sleeve.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 15, 2016
    Inventors: Joni Rannisto, Kelly Flook, Leena Valmu, Ville Saarainen, Suvi Ravela, Johan Finell
  • Publication number: 20160215256
    Abstract: The invention is directed to a method and kit to control and modify the status of cells, such as human stem cells, by changing their glycosylation, in particular sialylation and fucosylation, levels in a reaction condition where culture medium reagents, such as divalent cations, are present and cells are kept non-adherent. The invention is further directed to novel stem cells, the glycosylation of which has been specifically altered.
    Type: Application
    Filed: December 29, 2015
    Publication date: July 28, 2016
    Inventors: Johanna Nystedt, Heidi Anderson, Leena Valmu, Jari Natunen, Tero Satomaa
  • Patent number: 9234169
    Abstract: The invention is directed to a method and kit to control and modify the status of cells, such as human stem cells, by changing their glycosylation, in particular sialylation and fucosylation, levels in a reaction condition where culture medium reagents, such as divalent cations, are present and cells are kept non-adherent. The invention is further directed to novel stem cells, the glycosylation of which has been specifically altered.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: January 12, 2016
    Assignee: Glykos Finland
    Inventors: Johanna Nystedt, Heidi Anderson, Leena Valmu, Jari Natunen, Tero Satomaa
  • Publication number: 20130034901
    Abstract: The present invention relates to a stem cell and/or a population thereof having a specific profile of cell surface proteins and/or proteoglycans. The present invention also relates to use of a proteolytic enzyme in the modification of the cell surface of a stem cell. The present invention further relates to a method of modifying the cell surface of a stem cell by treatment with a proteolytic enzyme.
    Type: Application
    Filed: April 6, 2011
    Publication date: February 7, 2013
    Applicant: SUOMEN PUNAINEN RISTI VERIPALVELU
    Inventors: Johanna Nystedt, Tanja Hakkarainen, Petri Lehenkari, Erja Kerkelä, Leena Valmu
  • Publication number: 20120129712
    Abstract: A complex of Tra-antibody bound to an isolated glycan comprising type I—N-acetyllactosamine comprising target structure, and methods and uses utilizing said complex.
    Type: Application
    Filed: April 26, 2010
    Publication date: May 24, 2012
    Applicants: GLYKOS FINLAND OY, SUOMEN PUNAINEN RISTI, VERIPALVELU
    Inventors: Tero Satomaa, Suvi Natunen, Leena Valmu, Jari Natunen
  • Publication number: 20110143373
    Abstract: The invention describes novel reagents that can be applied for analysis of the quality of human cells. The method evaluates the integrity of the plasma membrane of the cells by detecting novel glyco structures found only intracellularly. The method can be applied, for example, to demonstrate exposure of therapeutic cell preparation to potentially harmful conditions. It can also be used as a quality control tool in methods in which intact cell membrane is essential and it can be applied in separation of damaged cells from non- damaged.
    Type: Application
    Filed: July 16, 2009
    Publication date: June 16, 2011
    Applicants: SUOMEN PUNAINEN RISTI, VERIPALVELU, GLYKOS FINLAND LTD
    Inventors: Tia Hirvonen, Annika Kotovuori, Virve Pitkanen, Suvi Natunen, Johanna Nystedt, Sari Tiitinen, Leena Valmu, Jari Natunen
  • Publication number: 20110136203
    Abstract: The invention is directed to a method and kit to control and modify the status of cells, such as human stem cells, by changing their glycosylation, in particular sialylation and fucosylation, levels in a reaction condition where culture medium reagents, such as divalent cations, are present and cells are kept non-adherent. The invention is further directed to novel stem cells, the glycosylation of which has been specifically altered.
    Type: Application
    Filed: July 16, 2009
    Publication date: June 9, 2011
    Applicants: SUOMEN PUNAINEN RISTI, VERIPALVELU, GLYKOS FINLAND LTD
    Inventors: Johanna Nystedt, Heidi Anderson, Leena Valmu, Jari Natunen, Tero Satomaa
  • Publication number: 20110045497
    Abstract: The invention is directed to the analysis of novel acidic glycan markers of several types of human cells. The analysis is performed by mass spectrometry or specific binder molecules.
    Type: Application
    Filed: March 7, 2008
    Publication date: February 24, 2011
    Applicants: SUOMEN PUNAINEN RISTI, VERIPALVELU, GLYKOS FINLAND LTD.
    Inventors: Suvi Natunen, Tero Satomaa, Jari Natunen, Leena Valmu, Virve Pitkänen
  • Publication number: 20100292095
    Abstract: This invention relates to antibody engineering technology. More particularly, the present invention relates to human IgM antibodies and derivatives thereof, which have novel binding specificity with regard to several oligosaccharide sequences and/or xenoantigenic sialic acid residue. The present invention also relates to processes for making and engineering such novel saccharide and/or NeuGc-binding monoclonal antibodies and to methods for using these antibodies and derivatives thereof in the field of immunodiagnostics, enabling qualitative and quantitative determination of xenoantigenic NeuGc in biological and raw material samples, as well as in immunotherapy, enabling blocking of xenoantigenic NeuGc in patients.
    Type: Application
    Filed: November 10, 2008
    Publication date: November 18, 2010
    Applicants: SUOMEN PUNAINEN RISTI, VERIPALVELU, GLYKOS FINLAND OY
    Inventors: Marja-Leena Laukkanen, Kristiina Takkinen, Jari Natunen, Tero Satomaa, Jaakko Parkkinen, Leena Valmu, Sari Tiitinen, Suvi Natunen
  • Publication number: 20100145032
    Abstract: The invention describes reagents and methods for specific binders to glycan structures of stem cells. Furthermore the invention is directed to screening of additional binding reagents against specific glycan epitopes on the surfaces of the stem cells. The preferred binders of the glycans structures includes proteins such as enzymes, lectins and antibodies.
    Type: Application
    Filed: January 18, 2008
    Publication date: June 10, 2010
    Applicants: Suomen Punainen Risti, Veripalelu, Glykos Finland Ltd.
    Inventors: Jarmo Laine, Tero Satomaa, Jari Natunen, Annamari Heiskanen, Maria Blomqvist, Anne Olonen, Juhani Saarinin, Sari Tiitinen, Ulla Impola, Milla Mikkola, Hanna Salo, Olli Aitio, Leena Valmu, Suvi Natunen, Heidi Anderson, Virve Pitkänen, Jukka Partanen, Taina Jaatinen, Minna Tiitanen, Tia Hirvonen
  • Publication number: 20100068806
    Abstract: The present invention provides methods and materials to modulate and grow stem cells by contacting stem cells with a binder recognizing terminal glycan structures of stem cells. The modulation can be morphological change, change in differentiation status, biological status or adherence. The materials provided in the present invention are also useful to screen such a binding agents and binders.
    Type: Application
    Filed: January 18, 2008
    Publication date: March 18, 2010
    Applicants: SUOMEN PUNAINEN RISTI, VERIPALVELU, Glykos Finland Ltd.
    Inventors: Jarmo Laine, Tero Satomaa, Jari Natunen, Annamari Heiskanen, Maria Blomqvist, Anne Olonen, Juhani Saarinen, Sari Tiitiene, Ulla Impola, Milla Mikkola, Leena Valmu, Minna Tiittanen
  • Publication number: 20100047827
    Abstract: The invention describes reagents and methods for specific binders to glycan structures of stem cells. Furthermore the invention is directed to screening of additional binding reagents against specific glycan epitopes on the surfaces of the stem cells. The preferred binders of the glycans structures includes proteins such as enzymes, lectins and antibodies.
    Type: Application
    Filed: January 18, 2008
    Publication date: February 25, 2010
    Applicants: SUOMEN PUNAINEN RISTI, VERIPALVELU, GLYKOS FINLAND LTD.
    Inventors: Jarmo Laine, Tero Satomaa, Jari Natunen, Annamari Heiskanen, Maria Blomqvist, Anne Olonen, Juhani Saarinen, Sari Titinen, Ulla Impola, Olli Aitio, Leena Valmu, Ulla Impola, Olli Aitio, Leena Valmu, Suvi Natunen, Hanna Salo
  • Publication number: 20100028913
    Abstract: The invention describes reagents and methods for specific binders to glycan structures of stem cells. Furthermore the invention is directed to screening of additional binding reagents against specific glycan epitopes on the surfaces of the stem cells. The preferred binders of the glycans structures includes proteins such as enzymes, lectins and antibodies.
    Type: Application
    Filed: January 18, 2008
    Publication date: February 4, 2010
    Applicants: SUOMEN PUNAINEN RISTI, VERIPALVELU, Glykos Finland Ltd.
    Inventors: Jarmo Laine, Tero Satomaa, Jari Natunen, Annamari Heiskanen, Maria Blomqvist, Anne Olonen, Juhani Saarinen, Sari Titinen, Ulla Impola, Olli Aitio, Leena Valmu, Heidi Anderson, Virve Pitkänen, Jukka Partanen, Taina Jaatinen