Reginald Fessenden patents
Encyclopedia
The list of Reginald Fessenden patents contains the innovation of his pioneering experiments. Reginald Aubrey Fessenden received hundreds of patents for devices in fields such as high-powered transmitting, sonar, and television.
principle) – 12 August, 1902, "Apparatus for Wireless Telegraphy" (compressed air spark gap transmitter) – 12 August, 1902, "Wireless Signaling", – 12 August, 1902 (transmit-receive switch), "Wireless Signaling", – 12 August, 1902, "Current Actuated Wave Responsive Device" ("barretter" detector) – August, 1902, "Signaling by Electromagnetic Waves" – issued 12 August 1902, "Signaling by Electromagnetic Waves" (ground plane
) – 12 August, 1902, "Apparatus for Signaling by Electromagnetic Waves" (voice modulation of 50 kHz alternator – continuous wave transmitter) – 12 August, 1902, "Current Operated Receiver for Electromagnetic Waves" – 2 December, 1902, "Selective Signaling by Electromagnetic Waves" (multiplex transmission and reception) – 2 December, 1902, "Transmission and Receipt of Signals" – 5 May, 1903, "Selective Signaling by Electromagnetic Waves" – 5 May, 1903, "Receiver for Electromagnetic Waves" – 5 May, 1903, "Receiver for Signaling" – 5 May, 1903, "Signaling by Electromagnetic Waves" – 5 May, 1903, "Signaling by Electromagnetic Waves" – May, 1903, "Receiver for Electromagnetic Waves" (improved "barretter" -- actually electrolytic detector) – May, 1903, "Signaling by Electromagnetic Waves" – 9 June, 1903, "Method of Utilizing the Energy of Waves" – 16 June, 1903, "Signaling by Electromagnetic Waves" – 27 October, 1903, "Signaling by Electromagnetic Waves" – 27 October, 1903, "Selective Signaling" – 23 February, 1904, "Signaling by Electromagnetic Waves" – 23 February, 1904, "Signaling by Electromagnetic Waves" – 8 March, 1904, "Signaling by Electromagnetic Waves" – 8 March, 1904, "Apparatus for Transmitting and Receiving Signals" – 6 December, 1904, "Receiver for Electromagnetic Waves" (sealed/pressurized electrolytic detector) – 4 July, 1905, "Signaling by Electromagnetic Waves" – 4 July, 1905, "Signaling by Electromagnetic Waves" – 4 July, 1905, "Aerial for Wireless Signaling" (shows insulated base) – 4 July, 1905, "Signaling by Electromagnetic Waves" (shows the Brant Rock tower) – 4 July, 1905, "Wireless Telegraphy" – 4 July, 1905, "Condenser" – 4 July, 1905, "Capacity" – 13 March, 1906, "Wireless Telegraphy" – 1 September, 1908, "Electric Signaling" – 16 March, 1909, "Receiver for Electromagnetic Waves" – 30 March, 1909, "Apparatus for Wireless Signaling" – 13 April, 1909, "Signaling by Electromagnetic Waves" – 20 July, 1909, "Producing High Frequency Oscillations" – 24 August, 1909, "Method for Cleaning Guns" – 2 November, 1909, "Method for Determining Positions of Vessels" – 30 November, 1909, "Wireless Telegraphy" (antenna tuning) – 1 February, 1910, "Signaling by Electromagnetic Waves" – 26 April, 1910, "Wireless Signaling" – 7 June, 1910, "Receiver for Electromagnetic Waves" – 21 June, 1910, "Method of Signaling" – 21 June, 1910, "Improvements in Wireless Telegraphy" – 1 November, 1910, "Electrical Signaling" – 20 December, 1910, "Signaling by Electromagnetic Waves" – 18 July, 1911, "Signaling by Electromagnetic Waves" – 29 August, 1911, "Electrical Signaling" – 29 August, 1911, "Determining Positions of Vessels" – 29 August, 1911, "Means for the Transmission of Energy by Electromagnetic Waves" – 30 January, 1912, "Signaling" – 5 March, 1912, "Signaling by Electromagnetic Waves" – 12 March, 1912, "Wireless Signaling" – 9 April, 1912, "Wireless Telegraphy" – 13 August, 1912, "High Frequency Electrical Conductor" – 1 October, 1912, "Contact for Electromagnetic Mechanism" – 31 December, 1912, "Electrical Signaling Apparatus" – 1925, "Wireless Telegraphy" (antenna tuning)– April, 1913, "Signaling by Sound and Other Longitudinal Elastic Impulses" – 1 September, 1914, "Agricultural Engineering" – 22 December, 1914, "Sending Mechanism for Electromagnetic Waves" – 2 February, 1916, "Apparatus for Converting Heat Into Work" – 16 March, 1915, "Electric Signaling" – 23 March, 1915, "Wireless Telegraphy" – 23 March, 1915, "Method of Transmitting and Receiving Electrical Energy" – 1 June, 1915, "Improvements in Wireless Telegraphy" – 20 July, 1915, "Amplifying Electrical Impulses" – 28 September, 1915, "Apparatus for the transmission by electrical oscillation" – 12 October, 1915, "Apparatus for Generating and Receiving Electromagnetic Waves" – 26 October, 1915, "Signaling Apparatus Aerial Navigation" – 26 October, 1915, "Apparatus for Wireless Signaling" – 28 December, 1915, "Apparatus for Producing High Frequency Oscillations" – 4 January, 1916, "Dynamo-Electric Machinery" – 4 January, 1916, "Means of Transmitting Intelligence" – 8 February, 1916, "Method of Transmitting Energy by Electromagnetic Waves" – 15 February, 1916, "Electromagnetic Indicator" – 15 February, 1916, "Wireless Signaling" – 11 April, 1916, "Signaling by Electromagnetic Waves" – 30 May, 1916, "Method of Using Pulverulent Matter As Fuel" – 11 July, 1916, "Method and Apparatus for Submarine Signaling" – 5 December 1916, "Submarine, Subterranean, and Aerial Telephony" – 16 January, 1917, "Apparatus for Phonograph Kinetoscopes" – 23 January, 1917, "Power Plant" – 27, February, 1917, "Method and Apparatus for Finding Ore Bodies" – 18 September, 1917, "Method for Storing Power" – 20 November, 1917, "Method and Apparatus for Producing Alternating Currents" – 7 May, 1918, "Method and Apparatus for Agricultural Engineering" – 11 June, 1918, "Method and Apparatus for Transmitting and Receiving Sound Waves Through Ground" – 25 June, 1918, "Apparatus for Submarines" – 4 January, 1919, "Method of and Apparatus for Obtaining Increased Circulation" – 14 October, 1919, "Detecting and Locating Ships" – 21 October, 1919, "Method of and Apparatus for Detecting Low Frequency Impulses" – 3 August, 1920, "Method and Apparatus for Submarine Signaling and Detection" – 3 August, 1920, "Method and Apparatus for Submarine Signaling" – 3 August, 1920, "Method and Apparatus for Sound Insulation" – 3 August, 1920, "Method and Apparatus for Detecting Submarines" – 10 August, 1920, "Wireless Direction Finder" – 12 April, 1921, "Method and Apparatus for Signaling and Otherwise Utilizing Radiant Impulses" – 5 July, 1921, "Sound-Signaling" – 5 July, 1921, "Apparatus for Submarine Signaling" – 3 August, 1920, "Submarine Signaling" – 18 October, 1921, "Method and Apparatus for Submarine Signaling" – 18 October, 1921, "Method and Apparatus for Submarine Signaling" – 22 November, 1921, "Method and Apparatus for Inspecting Material" – 25 April, 1922, "Method and Apparatus for Submarine Signaling" – 9 May, 1922, "Method and Apparatus for Detecting, Measuring, and Utilizing Low Frequency Impulses" – 19 September, 1922, "Acoustic Method and Apparatus" – 1 May, 1923, "Directional Receiving of Submarine Signals" – 30 October, 1923, "Method for Eliminating Undesired Impulses" – 6 November, 1923, "Eliminating Disturbing Energy" – 21 April, 1925, "Means for Eliminating Disturbing Noises" – 28 July, 1925, "Method and Apparatus for Generating Electrical Oscillations" – 8 September, 1925, "Apparatus for Directive Signaling" – 10 November, 1925, "Infusor" (for making tea) – March, 1926, "Method and Apparatus for Coordinating Radio and Phonograph Reproductions" – 1 February, 1927, "Method and Apparatus for the Transmission of Energy by High Frequency Impulses" – 8 February, 1927, "Method and Apparatus for Coordinating Radio and Phonograph Reproductions" – 21 June, 1932, "Means for Parking Cars" – 11 October, 1932, "Means for Modulating Electrical Energy by Light Impulses" – 28 February, 1933, "Rotary Brush" – 14 March, 1933, "Method and Apparatus for Sound Transmission" – 3 July, 1934, "Height Indicator" – 19 February, 1935, "Television System" – 3 November, 1936, "Television Apparatus" – 3 November, 1936
Patents
, "Lead-in Wire for Incandescent Electric Lamps" – 18 February, 1891, "Manufacture of Incandescent Electric Lamps" – 9 June, 1891, "Molding for Electrical Conductors" – 10 October, 1893, "Pencil for Incandescent Lamps" – 12 December, 1899, "Pencil for Incandescent Lamps" – 12 December, 1899, "Incandescent Lamp" – 12 December, 1899, "Incandescent Lamp" – 12 December, 1899, "Incandescent Lamp" – 12 December, 1899, "Induction Coil for X-ray Apparatus" – 6 March, 1900, "X-ray Apparatus" – 1 May, 1900, "Incandescent Lamp" – 29 May, 1900, "Induction-coil" – July, 1900, "Incandescent Lamp" – 19 March, 1901, "Wireless Telegraphy" – 12 August, 1902, "Apparatus for Wireless Telegraphy" – 12 August, 1902, "Wireless Telegraphy" – 12 August, 1902, "Wireless Telegraphy" – 12 August, 1902, "Conductor for Wireless Telegraphy" – 12 August, 1902, "Wireless Signaling" (heterodyneHeterodyne
Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden where high frequency signals are converted to lower frequencies by combining two frequencies. Heterodyning is useful for frequency shifting information of interest into a useful...
principle) – 12 August, 1902, "Apparatus for Wireless Telegraphy" (compressed air spark gap transmitter) – 12 August, 1902, "Wireless Signaling", – 12 August, 1902 (transmit-receive switch), "Wireless Signaling", – 12 August, 1902, "Current Actuated Wave Responsive Device" ("barretter" detector) – August, 1902, "Signaling by Electromagnetic Waves" – issued 12 August 1902, "Signaling by Electromagnetic Waves" (ground plane
Ground plane
In electrical engineering, a ground plane is an electrically conductive surface.-Radio antenna theory :In telecommunication, a ground plane structure or relationship exists between the antenna and another object, where the only structure of the object is a structure which permits the antenna to...
) – 12 August, 1902, "Apparatus for Signaling by Electromagnetic Waves" (voice modulation of 50 kHz alternator – continuous wave transmitter) – 12 August, 1902, "Current Operated Receiver for Electromagnetic Waves" – 2 December, 1902, "Selective Signaling by Electromagnetic Waves" (multiplex transmission and reception) – 2 December, 1902, "Transmission and Receipt of Signals" – 5 May, 1903, "Selective Signaling by Electromagnetic Waves" – 5 May, 1903, "Receiver for Electromagnetic Waves" – 5 May, 1903, "Receiver for Signaling" – 5 May, 1903, "Signaling by Electromagnetic Waves" – 5 May, 1903, "Signaling by Electromagnetic Waves" – May, 1903, "Receiver for Electromagnetic Waves" (improved "barretter" -- actually electrolytic detector) – May, 1903, "Signaling by Electromagnetic Waves" – 9 June, 1903, "Method of Utilizing the Energy of Waves" – 16 June, 1903, "Signaling by Electromagnetic Waves" – 27 October, 1903, "Signaling by Electromagnetic Waves" – 27 October, 1903, "Selective Signaling" – 23 February, 1904, "Signaling by Electromagnetic Waves" – 23 February, 1904, "Signaling by Electromagnetic Waves" – 8 March, 1904, "Signaling by Electromagnetic Waves" – 8 March, 1904, "Apparatus for Transmitting and Receiving Signals" – 6 December, 1904, "Receiver for Electromagnetic Waves" (sealed/pressurized electrolytic detector) – 4 July, 1905, "Signaling by Electromagnetic Waves" – 4 July, 1905, "Signaling by Electromagnetic Waves" – 4 July, 1905, "Aerial for Wireless Signaling" (shows insulated base) – 4 July, 1905, "Signaling by Electromagnetic Waves" (shows the Brant Rock tower) – 4 July, 1905, "Wireless Telegraphy" – 4 July, 1905, "Condenser" – 4 July, 1905, "Capacity" – 13 March, 1906, "Wireless Telegraphy" – 1 September, 1908, "Electric Signaling" – 16 March, 1909, "Receiver for Electromagnetic Waves" – 30 March, 1909, "Apparatus for Wireless Signaling" – 13 April, 1909, "Signaling by Electromagnetic Waves" – 20 July, 1909, "Producing High Frequency Oscillations" – 24 August, 1909, "Method for Cleaning Guns" – 2 November, 1909, "Method for Determining Positions of Vessels" – 30 November, 1909, "Wireless Telegraphy" (antenna tuning) – 1 February, 1910, "Signaling by Electromagnetic Waves" – 26 April, 1910, "Wireless Signaling" – 7 June, 1910, "Receiver for Electromagnetic Waves" – 21 June, 1910, "Method of Signaling" – 21 June, 1910, "Improvements in Wireless Telegraphy" – 1 November, 1910, "Electrical Signaling" – 20 December, 1910, "Signaling by Electromagnetic Waves" – 18 July, 1911, "Signaling by Electromagnetic Waves" – 29 August, 1911, "Electrical Signaling" – 29 August, 1911, "Determining Positions of Vessels" – 29 August, 1911, "Means for the Transmission of Energy by Electromagnetic Waves" – 30 January, 1912, "Signaling" – 5 March, 1912, "Signaling by Electromagnetic Waves" – 12 March, 1912, "Wireless Signaling" – 9 April, 1912, "Wireless Telegraphy" – 13 August, 1912, "High Frequency Electrical Conductor" – 1 October, 1912, "Contact for Electromagnetic Mechanism" – 31 December, 1912, "Electrical Signaling Apparatus" – 1925, "Wireless Telegraphy" (antenna tuning)– April, 1913, "Signaling by Sound and Other Longitudinal Elastic Impulses" – 1 September, 1914, "Agricultural Engineering" – 22 December, 1914, "Sending Mechanism for Electromagnetic Waves" – 2 February, 1916, "Apparatus for Converting Heat Into Work" – 16 March, 1915, "Electric Signaling" – 23 March, 1915, "Wireless Telegraphy" – 23 March, 1915, "Method of Transmitting and Receiving Electrical Energy" – 1 June, 1915, "Improvements in Wireless Telegraphy" – 20 July, 1915, "Amplifying Electrical Impulses" – 28 September, 1915, "Apparatus for the transmission by electrical oscillation" – 12 October, 1915, "Apparatus for Generating and Receiving Electromagnetic Waves" – 26 October, 1915, "Signaling Apparatus Aerial Navigation" – 26 October, 1915, "Apparatus for Wireless Signaling" – 28 December, 1915, "Apparatus for Producing High Frequency Oscillations" – 4 January, 1916, "Dynamo-Electric Machinery" – 4 January, 1916, "Means of Transmitting Intelligence" – 8 February, 1916, "Method of Transmitting Energy by Electromagnetic Waves" – 15 February, 1916, "Electromagnetic Indicator" – 15 February, 1916, "Wireless Signaling" – 11 April, 1916, "Signaling by Electromagnetic Waves" – 30 May, 1916, "Method of Using Pulverulent Matter As Fuel" – 11 July, 1916, "Method and Apparatus for Submarine Signaling" – 5 December 1916, "Submarine, Subterranean, and Aerial Telephony" – 16 January, 1917, "Apparatus for Phonograph Kinetoscopes" – 23 January, 1917, "Power Plant" – 27, February, 1917, "Method and Apparatus for Finding Ore Bodies" – 18 September, 1917, "Method for Storing Power" – 20 November, 1917, "Method and Apparatus for Producing Alternating Currents" – 7 May, 1918, "Method and Apparatus for Agricultural Engineering" – 11 June, 1918, "Method and Apparatus for Transmitting and Receiving Sound Waves Through Ground" – 25 June, 1918, "Apparatus for Submarines" – 4 January, 1919, "Method of and Apparatus for Obtaining Increased Circulation" – 14 October, 1919, "Detecting and Locating Ships" – 21 October, 1919, "Method of and Apparatus for Detecting Low Frequency Impulses" – 3 August, 1920, "Method and Apparatus for Submarine Signaling and Detection" – 3 August, 1920, "Method and Apparatus for Submarine Signaling" – 3 August, 1920, "Method and Apparatus for Sound Insulation" – 3 August, 1920, "Method and Apparatus for Detecting Submarines" – 10 August, 1920, "Wireless Direction Finder" – 12 April, 1921, "Method and Apparatus for Signaling and Otherwise Utilizing Radiant Impulses" – 5 July, 1921, "Sound-Signaling" – 5 July, 1921, "Apparatus for Submarine Signaling" – 3 August, 1920, "Submarine Signaling" – 18 October, 1921, "Method and Apparatus for Submarine Signaling" – 18 October, 1921, "Method and Apparatus for Submarine Signaling" – 22 November, 1921, "Method and Apparatus for Inspecting Material" – 25 April, 1922, "Method and Apparatus for Submarine Signaling" – 9 May, 1922, "Method and Apparatus for Detecting, Measuring, and Utilizing Low Frequency Impulses" – 19 September, 1922, "Acoustic Method and Apparatus" – 1 May, 1923, "Directional Receiving of Submarine Signals" – 30 October, 1923, "Method for Eliminating Undesired Impulses" – 6 November, 1923, "Eliminating Disturbing Energy" – 21 April, 1925, "Means for Eliminating Disturbing Noises" – 28 July, 1925, "Method and Apparatus for Generating Electrical Oscillations" – 8 September, 1925, "Apparatus for Directive Signaling" – 10 November, 1925, "Infusor" (for making tea) – March, 1926, "Method and Apparatus for Coordinating Radio and Phonograph Reproductions" – 1 February, 1927, "Method and Apparatus for the Transmission of Energy by High Frequency Impulses" – 8 February, 1927, "Method and Apparatus for Coordinating Radio and Phonograph Reproductions" – 21 June, 1932, "Means for Parking Cars" – 11 October, 1932, "Means for Modulating Electrical Energy by Light Impulses" – 28 February, 1933, "Rotary Brush" – 14 March, 1933, "Method and Apparatus for Sound Transmission" – 3 July, 1934, "Height Indicator" – 19 February, 1935, "Television System" – 3 November, 1936, "Television Apparatus" – 3 November, 1936