Patents by Inventor Donald George Mason

Donald George Mason 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).

  • Patent number: 4070277
    Abstract: Apparatus that removes solids from a liquid by flotation and by sedimentation has a uniform surface distribution of small bubbles for making solids float. Large bubbles which would cause turbulence and uneven bubble flow are confined and eliminated.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: January 24, 1978
    Assignee: Ecodyne Corporation
    Inventors: Stephen Allen Uban, Donald George Mason