Patents by Inventor Dean Gramly

Dean Gramly 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).

  • Manhole cover locks
    Patent number: 8156773
    Abstract: Improved manhole cover locks are disclosed that fit into existing access recesses in the covers and engage the rim of the manhole cover housing at one end thereof and latchingly engage the underside of the manhole cover thereof. A tamper proof bolt provides adjustability to the latch from the top of the lock.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: April 17, 2012
    Inventors: Rodney G. Olson, Dean Gramly, Brad S. Gramly, Andrew Brovold, Scott J. Emmerich