Patents by Inventor Sergio Ferness

Sergio Ferness 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).

  • Depth sphere
    Patent number: 6208588
    Abstract: A compact self contained portable, buoyant, water depth and temperature recording device. Allowing the user to gather depth recordings for safety and sporting situations. With it's simplicity of use, portability, and minimal storability factors , makes the units capabilities of use extend beyond the present large and permanent mounted counterparts.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: March 27, 2001
    Inventor: Sergio Ferness