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David Edward Hughes developed the world's first radio transmitter and receiver in 1879.  However, his invention was originally believed by some to transmit and receive via induction.  Many others studied James Maxwell's theory of electromagnetism to develop method and devices for wireless communication over radio waves.  Click on the links below to view some patents of note regarding the development of the Radio.

 

 

 

Invention                                                                                           Filing Date                          Patent (PDF)

 

System of Transmission of Electrical Energy                                   09/02/1897                                Download

(No. 645,576 to N. Tesla)

 

Electric Telegraphy                                                                               02/01/1898                                Download

(No. 609,154 to O. Lodge)

 

Wireless Electric Transmission of Signals over Surfaces                02/06/1899                               Download

(No. 750,429 to F. Braun)

 

Method of Selective Electric Signaling                                               02/08/1900                               Download

(No. 714,756 to S. Stone)

 

Apparatus for Transmission of Electrical Energy                             02/19/1900                               Download

(No. 649,621 to N. Tesla)

 

Apparatus for Wireless Telegraphy                                                    05/17/1900                               Download

(No. 706,736 to R. Fessenden)

 

Apparatus for Wireless Telegraphy                                                    02/23/1901                               Download

(No. 676,332 to G. Marconi)

 

Transmitting Electrical Impulses and Signals                                    04/01/1901                              Download

and Apparatus Therefor                                                                                                    

(Reissue No. 11,913 to G. Marconi)

Means for Tuning and Adjusting Electric Circuits                             08/05/1901                              Download

(No. 763,345 to F. Braun)​

Detector for Electrical Disturbances                                                   09/30/1901                              Download

(No. 755,840 to J. Bose)

Wave Transmitter                                                                                   02/09/1903                              Download

(No. 771,917 to R. De Moura)​

Instrument for Converting Alternating Electric                                 04/19/1905                              Download

Currents into Continuous Currents

(No. 803,684 to J. Fleming)​

Transistor Radio Apparatus                                                                  03/25/1955                              Download

(No. 2,892,931 to R. Koch)​