Patents by Inventor Maron Gunnar Sandvik

Maron Gunnar Sandvik 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).

  • AIR VENT HEAD
    Publication number: 20150013779
    Abstract: The present invention relates to a valve providing air ventilation in and out of ballast tanks in ships, and especially to an air vent head providing free flow of air in and out of ballast tanks while at the same time prevents seawater to enter uncontrollably into the ballast tanks via the air inlet.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 15, 2015
    Applicant: John Gjerde AS
    Inventors: Maron Gunnar Sandvik, Roger Gjerde