Patents by Inventor Curtis Duff

Curtis Duff 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).

  • LIQUID CORE SAMPLING DEVICE AND FLOAT
    Publication number: 20080250879
    Abstract: An improved liquid sampling device provides a buoyant handle which reduces the likelihood that the device will fall into a body of liquid and provides greater operator control of the device. The handle and a loop facilitate removal of the sampling device from a liquid if it has fallen therein.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Inventor: Curtis Duff