The New York American (November 1st, 1933 issue) announced Tesla's invention in an article:
Device to Harness Cosmic Energy Claimed by Tesla
...This new power for the driving of the world's machinery will be derived from the energy which operates the universe, the cosmic energy, whose central source for the earth is the sun and which is everywhere present in unlimited quantities....
and:
Inventor announces discovery to displace fuel in driving machinery. Calls Sun main source.
http://www.teslatech.info/ttstore/report/articles/v2n2art/ra...

Tesla received *two patents for this radiant energy device:
US Patent No 685,957 - Apparatus for the Utilization of Radiant Energy
US Patent No 685,958 - Method of Utilizing Radiant Energy
*Both patents were filed on March 21, 1901 and granted November 5, 1901