Patents by Inventor Heikki Reijonen

Heikki Reijonen 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).

  • Liquid for evaporative cooling apparatus
    Patent number: 6478984
    Abstract: The invention relates to a liquid for evaporative cooling, said liquid being particularly suitable to indirect evaporative cooling apparatus. The liquid comprises an aqueous solution of trimethyl glycine, preferably containing 5-35 wt. % trimethyl glycine or a derivative thereof, and 65-95 wt. % water.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: November 12, 2002
    Assignee: Fortum Oyj
    Inventors: Antti Ilves, Heikki Reijonen
  • Liquid for the prevention of freezing of aircrafts and runways
    Patent number: 6294104
    Abstract: The present invention relates to an environmentally friendly liquid for the prevention of freezing of aircrafts and runways, said liquid being particularly suitable to various spraying equipments. The vapor pressure of the said liquid is less than 5 Pa, and the acute oral toxicity, LD50, is more than 10 000 mg/kg. This anti-freezing liquid comprises 10-60 wt. % trimethyl glycin or derivatives thereof, and 40-90 wt. % water, and optionally additives known for anti-freezing liquids.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: September 25, 2001
    Assignee: Fortum Power and Heat Oy
    Inventors: Antti Ilves, Heikki Reijonen, Jukka-Pekka Nieminen