Patents by Inventor Helinä Hartikainen

Helinä Hartikainen 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).

  • Water treatment
    Patent number: 11014831
    Abstract: The present invention concerns a process for removing metal ions from waste water, which process comprises providing plant-derived anionic nanofibrillar cellulose, carrying out a purification treatment comprising sorption of positively charged metal ions contained in the waste water to said nanofibrillar cellulose, separating used plant-derived anionic nanofibrillar cellulose from the waste water, and recovering treated waste water. The invention also concerns use of plant-derived anionic nanofibrillar cellulose for removing metal ions from waste water.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: May 25, 2021
    Assignee: UPM-KYMMENE CORPORATION
    Inventors: Helinä Hartikainen, Salla Venäläinen, Markus Nuopponen, Anne Meriluoto
  • WATER TREATMENT
    Publication number: 20190039918
    Abstract: The present invention concerns a process for removing ions from waste water, which process comprises providing plant-derived cationic nanofibrillar cellulose, carrying out a purification treatment comprising sorption of ions contained in the waste water to the plant-derived cationic nanofibrillar cellulose, separating used plant-derived cationic nanofibrillar cellulose from the waste water, and recovering treated waste water. The invention also concerns use of plant-derived cationic nanofibrillar cellulose in water treatment for removing charged contaminants.
    Type: Application
    Filed: May 4, 2016
    Publication date: February 7, 2019
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Helinä HARTIKAINEN, Salla VENÄLÄINEN, Markus NUOPPONEN, Anne MERILUOTO
  • WATER TREATMENT
    Publication number: 20190031533
    Abstract: The present invention concerns a process for removing metal ions from waste water, which process comprises providing plant-derived anionic nanofibrillar cellulose, carrying out a purification treatment comprising sorption of positively charged metal ions contained in the waste water to said nanofibrillar cellulose, separating used plant-derived anionic nanofibrillar cellulose from the waste water, and recovering treated waste water. The invention also concerns use of plant-derived anionic nanofibrillar cellulose for removing metal ions from waste water.
    Type: Application
    Filed: May 4, 2016
    Publication date: January 31, 2019
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Helinä Hartikainen, Salla Venäläinen, Markus Nuopponen, Anne Meriluoto
  • Method for treating soil material
    Patent number: 8807870
    Abstract: The invention relates to a method for treating soil material. According to the invention, the soil material is treated by a mixture composition containing at least microfibrillated cellulose and water.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: August 19, 2014
    Assignee: UPM-Kymmene Corporation
    Inventors: Antti Laukkanen, Jan-Erik Teirfolk, Laura Alakukku, Martti Sarkia, Helinä Hartikainen
  • METHOD FOR TREATING SOIL MATERIAL
    Publication number: 20130108373
    Abstract: The invention relates to a method for treating soil material. According to the invention, the soil material is treated by a mixture composition containing at least microfibrillated cellulose and water.
    Type: Application
    Filed: June 1, 2011
    Publication date: May 2, 2013
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Antti Laukkanen, Jan-Erik Teirfolk, Laura Alakukku, Martti Sarkia, Helinä Hartikainen