Patents by Inventor Pekka Johnson

Pekka Johnson 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).

  • Solid formic acid product
    Patent number: 6689377
    Abstract: The invention relates to a solid antimicrobial product suitable for the preservation of an organic material and for combating of detrimental microorganisms, as well as for pH control. The product contains, absorbed into a support a concentrated formic acid partly neutralized with gaseous ammonia, the water content of the formic acid being below 2% by weight. In addition, the invention comprises a method for preparing the product.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: February 10, 2004
    Assignee: Kemira Chemicals Oy
    Inventors: Eero Aitta, Jouko Arvola, Pekka Johnson, Juha Kangastalo, Marjo Luoma, Ilkka Pollari
  • Solid formic acid poduct
    Publication number: 20030092768
    Abstract: The invention relates to a solid antimicrobial product suitable for the preservation of an organic material and for combating of detrimental microorganisms, as well as for pH control. The product contains, absorbed into a support, a concentrated formic acid partly neutralized with gaseous ammonia, the water content of the formic acid being below 2% by weight. In addition, the invention comprises a method for preparing the product.
    Type: Application
    Filed: October 23, 2002
    Publication date: May 15, 2003
    Inventors: Eero Aitta, Jouko Arvola, Pekka Johnson, Juhan Kangastalo, Mario Luoma, Ikka Pollari