Patents by Inventor Van Dy Nguyen

Van Dy Nguyen 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).

  • Apparatus for the controlled sampling of rain water
    Patent number: 4245499
    Abstract: An apparatus for sampling rain which comprises a container receiving a saing vessel and provided with a cover having a drive which opens upon detection of a first rain phase and closes at a second rain phase whereby the sampling vessel remains free from contaminants from the atmosphere prior to the rain collection stage.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: January 20, 1981
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Van Dy Nguyen, Pavel Valenta