Patents by Inventor Robert Grieble

Robert Grieble 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).

  • Method and device for a self orienting floating apparatus
    Patent number: 6422746
    Abstract: The present invention relates to a method and device for a self orienting floating apparatus which utilizes an external magnetic field to maintain a constant orientation, and specifically relates to a plain form hydrometer, a floating thermometer, and a thermohydrometer that continuously display a graduated scale in an operator pre-determined direction.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: July 23, 2002
    Assignee: G & W Instruments, Inc.
    Inventors: Ferdinand Weiss, Robert Grieble