Patents by Inventor Kati Kekalainen

Kati Kekalainen 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).

  • Separation and recovery of xylose using weakly basic anion exchange resins
    Patent number: 9777342
    Abstract: The invention relates to a method of separating and recovering xylose from a xylose-containing plant-based solution. The method is performed in a chromatographic separation system, which comprises one or more weak base anion exchange resins and optionally one or more other resins selected from strong acid cation exchange resins and weak acid cation exchange resins, by passing the solution through the separation system, followed by recovering at least one fraction enriched in xylose. Optionally, a rhamnose fraction may also be recovered.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: October 3, 2017
    Assignee: DUPONT NUTRITION BIOSCIENCES APS
    Inventors: Jari Lewandowski, Nina Nurmi, Jari Mattila, Kari Laiho, Kati Kekalainen
  • SEPARATION AND RECOVERY OF XYLOSE USING WEAKLY BASIC ANION EXCHANGE RESINS
    Publication number: 20150247211
    Abstract: The invention relates to a method of separating and recovering xylose from a xylose-containing plant-based solution. The method is performed in a chromatographic separation system, which comprises one or more weak base anion exchange resins and optionally one or more other resins selected from strong acid cation exchange resins and weak acid cation exchange resins, by passing the solution through the separation system, followed by recovering at least one fraction enriched in xylose. Optionally, a rhamnose fraction may also be recovered.
    Type: Application
    Filed: September 19, 2013
    Publication date: September 3, 2015
    Inventors: Jari Lewandowski, Nina Nurmi, Jari Mattila, Kari Laiho, Kati Kekalainen
  • Separation process
    Patent number: 8951416
    Abstract: The present invention relates to a method of separating betaine and at least one other component from a sugar beet based fermentation solution. The invention is based on the use of a combination of SAC resins and WAC resins in a specific order and in specified proportions in a chromatographic SMB separation system. The chromatographic separation system is preferably a single integrated SMB system comprising both SAC and WAC resin beds.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: February 10, 2015
    Assignee: Dupont Nutrition Biosciences APS
    Inventors: Päivi Sarmala, Hannu Paananen, Pia Saari, Kati Kekäläinen, Jarmo Kuisma
  • SEPARATION PROCESS
    Publication number: 20120010429
    Abstract: The present invention relates to a method of separating betaine and at least one other component from a sugar beet based fermentation solution. The invention is based on the use of a combination of SAC resins and WAC resins in a specific order and in specified proportions in a chromatographic SMB separation system. The chromatographic separation system is preferably a single integrated SMB system comprising both SAC and WAC resin beds.
    Type: Application
    Filed: February 24, 2010
    Publication date: January 12, 2012
    Applicant: DANISCO A/S
    Inventors: Päivi Sarmala, Hannu Paananen, Pia Saari, Kati Kekäläinen, Jarmo Kuisma