unspellable ! ! !
I thought you were kidding. There is documentation of this fact at the following URL:
http://www.ncafe.com/chris/pat2/
Actually, Hedi Lamarr and a co-inventor, George Antheils, patented the concept of spread-spectrum communication but never realized any monetary return, as the concept could not be implemented in hardware until practical and inexpensive microprocessors were available.
Luke