Patents by Inventor Mikal Heidal

Mikal Heidal 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).

  • Process and means to prevent microorganisms blooming in an aquatic system
    Patent number: 6830699
    Abstract: A method and a device for the restriction of blooms of micro-organisms in an aqueous system are described. A smaller portion of the body of water in the system is subjected to a radiation treatment, preferably a UV-treatment, whereupon the treated quantity of water is returned to the aqueous system. The UV radiation will induce activation of latent viruses, and when these are returned to the water system, micro-organisms in this system will be killed or inactivated, and new micro-organisms will not be formed.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: December 14, 2004
    Assignee: Forinnova AS
    Inventors: Mikal Heidal, Gunnar Bratbak
  • Process and means to prevent microorganisms blooming in an aquatic system
    Publication number: 20030047518
    Abstract: A method and a device for the restriction of blooms of micro-organisms in an aqueous system are described. A smaller portion of the body of water in the system is subjected to a radiation treatment, preferably a UV-treatment, whereupon the treated quantity of water is returned to the aqueous system. The UV radiation will induce activation of latent viruses, and when these are returned to the water system, micro-organisms in this system will be killed or inactivated, and new micro-organisms will not be formed.
    Type: Application
    Filed: August 19, 2002
    Publication date: March 13, 2003
    Inventors: Mikal Heidal, Gunnar Bratbak