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History of Communications-Electronics in the United States Navy, Captain Linwood S. Howeth, USN (Retired), 1963, pages 577-580:


Appendix  J.  Radio  Patents  Owned  by  or  Licensed  to  the  United  States  Government


Patent No.   Date of issue   Inventor                   Title
  736483 18 Aug. 1903 G. F. R. Blockmann Telegraphic transmitting and receiving apparatus.
  743056 3 Nov. 1903 F. Braun Wireless telegraphy.
  744897 24 Nov. 1903 F. Braun Means for directing electric waves for use in wireless telegraphy.
  750429 26 Jan. 1904 F. Braun Wireless electric transmission of signals over surfaces.
  763164 21 June 1904 J. Donitz Apparatus for determining the length of waves and observing the oscillations in electric oscillation systems.
  763345 21 June 1904 F. Braun Means for tuning and adjusting electric circuits.
  776337 29 Nov. 1904 Mandelstam and
Brandes
 Wireless signaling system.
  776380 29 Nov. 1904 F. Braun Method of producing quick electrical oscillations of different phases.
  776216 13 Dec. 1904 S. Musits Apparatus for wireless telephone.
  783923 28 Feb. 1905 A. Blondel Wireless telegraphy by electric waves.
  783992 28 Feb. 1905 A. Blondel Wireless telegraphy by electric waves.
  789449 9 May 1905 V. Poulsen Method of producing alternating currents with a high number of vibrations.
  790179 16 May 1905 F. Braun Wireless telegraphy.
  790250 16 May 1905 Braun and Randahl Apparatus for increasing the discharge energy of electrical vibration systems.
  793609 27 June 1905 V. Poulsen Apparatus for alternating current.
  797169 15 Aug. 1905 F. Braun Space telegraphy.
  797544 15 Aug. 1905 F. Braun Space telegraphy.
  810150 16 Jan. 1906 C. Hulsmeyer Wireless transmitting and receiving mechanism for electric waves.
  813914 27 Feb. 1906 R. H. Randahl Wireless electric signaling system.
  820169 8 May 1906 G. Von Arco Resonance circuit.
  820258 8 May 1906 R. H. Randahl Detector for electromagnetic waves or the like.
  824682 26 June 1906 A. Blondel Method of practicing wireless telegraphy.
  828864 14 Aug. 1906 W. Schloemilch Receiver for wireless telegraphy.
  835023 6 Nov. 1906 H. Heinicke Transformer.
  839029 18 Dec. 1906 V. Poulsen Receiving system for wireless transmission of signals.
  851336 23 Apr. 1907 G. Von Arco Transmitter for wireless telegraphy.
  858668 2 July 1907 P. O. Pederson Receiver for electrical oscillations.
  883437 31 Mar. 1908 L. D. Wildman Receiver for space signaling systems.
  890451 9 June 1908 V. Poulsen Generator of electric oscillations.
  892311 30 June 1908 O. Scheller Apparatus for plotting resonance curves.
  892312 30 June 1908 O. Scheller System for receiving undamped electric oscillations.
  897779 1 Sept. 1908 V. Poulsen Receiver for wireless signaling.
  905537 1 Dec. 1908 G. Jahr Receiver arrangement for wireless telegraphy.
  914483 9 Mar. 1909 Erdman and Fischer Device for preventing collisions at sea.
  929487 27 July 1909 V. Poulsen Wireless signaling system.
  930588 10 Aug. 1909 Wirth and Beck Receiving electrical system.
  936258 5 Oct. 1909 W. Schloemilch Receiver for space telegraphy.
  958181 17 May 1910 W. Schloemilch Receiver for wireless telegraphy.
  958209 17 May 1910 G. Von Arco Portable station for wireless telegraphy.
  959100 24 May 1910 G. Von Arco Aerial conductor arrangement for wireless telegraphy.
  961645 14 June 1910 V. Poulsen Receiver for wireless transmission of signals.
  962262 29 June 1910 Schloemilch and
Pichon.
 Wave detector for wireless telegraphy.
  966705 9 Aug. 1910 V. Poulsen Signaling by wireless telegraphy.
  970850 20 Sept. 1910 A. Plizener Wireless telephony.
  986405 7 Mar. 1911 P. O. Pederson Transmitting apparatus for wireless telegraphy.
  994426 6 June 1911 R. H. Randahl Receiver for wireless telegraphy.
1003210 12 Sept. 1911 Schloemilch and
Pichon.
 Wave detector for wireless telegraphy.
1003374 12 Sept. 1911 Schloemilch and
Pichon.
 Wave detector for wireless telegraphy.
1005471 10 Oct. 1911 R. H. Randahl Antenna.
1012496 19 Dec. 1911 G. Wirth Wireless receiving electric system.
1014722 16 Jan. 1912 R. H. Randahl Means for varying the period of oscillation of two oscillatory circuits.
1029573 11 June 1912 Wirth, Beck and
Knauss.
 Wireless controlled current distributor.
1043117 5 Nov. 1912 E. Von Lepel Apparatus for producing rapid electric oscillations.
1051744 28 Jan. 1913 A. Meissner Spark gap for impulse excitation.
1052849 11 Feb. 1913 Schloemilch and
Pichon.
 System of radiotelephony.
1059391 22 Apr. 1913 V. Poulsen Receiver for wireless transmission of signals.
1061717 13 May 1913 G. Von Arco Arrangement for producing electrical oscillations.
1064325 10 June 1913 B. Hirsch Wave meter.
1067851 22 July 1913 A. Wasmus Means for producing Rontgen rays.
1077733 4 Nov. 1913 A. Meissner Means for producing slightly damped oscillations by shock excitation.
1082221 23 Dec. 1913 G. Von Arco Radiotelegraphic station.
1087126 17 Feb. 1914 Macku, Mandelstam
and Papalexi
 Arrangement for producing slightly damped electrical oscillations.
1087549 17 Feb. 1914 V. Poulsen Receiver for wireless transmission signals.
1087892 17 Feb. 1914 Schloemilch and
Von Sronk.
 Means for receiving electrical oscillations.
1091159 24 Mar. 1914 P. O. Pederson Transmitting apparatus for electric signaling.
1092294 7 Apr. 1914 J. Schiessler Receiving apparatus for alternative wireless telegraphy and telephony.
1099998 16 June 1914 J. Schiessler Submarine signaling apparatus.
1101148 23 June 1914 J. Schiessler Apparatus for the production and strengthening of electrical vibrations.
1103822 14 July 1914 W. Otts High-tension oscillator.
1104556 21 July 1914 C. Schon Photographic recording apparatus.
1116130 3 Nov. 1914 J. Schiessler Electric capacitative inductive coupling.
1116059 3 Nov. 1914 W. Hahnemann Antenna structure on aeroplanes for wireless signaling.
1131187 9 Mar. 1915 Von Arco and
Randahl.
 Self-inductive means for electrical oscillatory circuits.
1135604 13 Apr. 1915 A. Meissner Process and apparatus for determining the position of radio telegraphic receivers.
1142625 8 June 1915 E. Reitz Discharge tube.
1148279 27 June 1915 Von Arco and
Randahl.
 Self-inductive means for electrical oscillatory circuits.
1148827 3 Aug. 1915 W. Burstyn Wireless telephone transmitter.
1150395 17 Aug. 1915 C. Schon Telegraphic transmission.
1151824 31 Aug. 1915 G. Reuthe Electric condenser.
1152272 31 Aug. 1915 H. Boss Electric spark gap.
1158309 26 Oct. 1915 C. Schon Transmitter for wireless telegraphy.
1161142 23 Nov. 1915 C. V. Logwood Wireless communication.
1162830 7 Dec. 1915 Von Arco and
Meissner.
 System for signaling by wireless telegraphy under the quenched-spark method.
1163180 7 Dec. 1915 Schloemilch and Lieb. Means for strengthening weak electric impulses.
1168837 18 Jan. 1916 E. Von Lepel Method of producing electrical oscillations.
1169082 18 Jan. 1916 Von Lieben, Leisz
and Strauss.
 Discharge-tube.
1169676 25 Jan. 1916 Pichon and
Meissner.
 Frequency-converter.
1170552 8 Feb. 1916 A. Meissner Means for producing alternating current by cathode-ray tubes.
1175472 14 Mar. 1916 R. H. Randall Coupling for electrical oscillation circuits.
1175489 14 Mar. 1916 Von Arco and
Randahl.
 Self-inductive means for electrical oscillatory circuit.
1178890 11 Apr. 1916 Von Arco, Leib
and Frey.
 Radiotelegraphy station.
1179353 ---------- L. F. Fuller Wireless telegraphy.
1180075 18 Apr. 1916 P. F. Pichon Production and detection of electric oscillations.
1181556 2 May 1916 Von Arco and
Meissner.
 Means for producing high-frequency currents.
1186654 13 June 1916 A. Franke Means for producing phase-shifted oscillations in a plurality of independent oscillation circuits.
1190165 4 July 1916 Hahnemann Submarine telegraphy or telephony.
1197366 5 Sept. 1916 Hahnemann Wireless signaling apparatus.
1204720 14 Nov. 1916 E. Von Lepel Circuit arrangement for wireless transmitters.
1210540 2 Jan. 1917 Rukep and
Schloemilch.
 Cathode-ray tube.
1214214 30 Jan. 1917 Poulsen and
Pederson.
 Generator of high-frequency current.
1214283 30 Jan. 1917 L. DeForest Wireless telegraphy.
1214591 6 Feb. 1917 G. Reuthe Antenna for radiotelegraph station.
1214621 6 Feb. 1917 Von Arco and Meissner Means for producing electrical oscillations with the aid of an auxiliary oscillation circuit.
1216538 20 Feb. 1917 Von Arco and  Randahl Means for producing electrical oscillations.
1216615 20 Feb. 1917 G. Seibt Apparatus for producing powerful electrical oscillations.
1219550 20 Mar. 1917 Hahnemann Antenna structure on airplanes for wireless signaling.
1224048 24 Apr. 1917 E. Von Lepel Method of producing electrical oscillations of high frequency from direct current.
1224343 1 May 1917 J. O. Watkins Wireless telegraphy.
1229740 12 June 1917 R. Rurstenan Measuring instrument for Roentgen rays.
1231528 26 June 1917 P. O. Pederson Generator for high-frequency currents.
1267018 21 May 1918 Von Arco and Meissner Transmitting apparatus for wireless telegraphy and telephony.
1294177 11 Feb. 1919 W. Schloemilch Wave detector.
1294985 18 Feb. 1919 Von Arco and Meissner Station for wireless telegraphy and telephony.
1298490 25 Mar. 1919 L. F. Fuller Electrical oscillation generator.
1300156 8 Apr. 1919 L. F. Fuller Radiotelegraphy.
1300157 8 Apr. 1919 L. F. Fuller Radiotelegraphy.
1306223 10 June 1919 L. F. Fuller Radiotelegraphy.
1308530 1 July 1919 Reuthe Controlling wireless telegraph transmitters.
1309283 8 July 1919 L. F. Fuller Radiotelegraphy.
1311654 29 July 1919 --- Radio method and apparatus.
1314095 26 Aug. 1919 G. Reuthe Antenna arrangement for wireless signaling and the like.
1314102 26 Aug. 1919 Von Arco and Meissner Connection for electric relays working with ionized gas gap.
1316172 16 Sept. 1919 Marx and Fuller Radiotelegraphy.
1320585 4 Nov. 1919 R. R. Beal Wireless telegraphy.
1330254 10 Feb. 1920 L. F. Fuller Radiotelegraphy.
1336833 13 Apr. 1920 L. F. Fuller Radiotelegraphy.
1339191 4 May 1920 L. F. Fuller Radiotelegraphy.
1344052 22 June 1920 Marx and Fuller Radiotelegraphy.
1350695 24 Aug. 1920 --- Radio transmission system.
1352059 7 Sept. 1920 --- Wiggling electrode division of 1298.
1352883 14 Sept. 1920 --- Ignition key signaling.
1352886 14 Sept. 1920 --- Loop transmission.
1358143 9 Nov. 1920 --- Coupled compensation isolated loop.
1358144 9 Nov. 1920 --- Arcs in multiple.
1381626 14 June 1921 --- Impulse transformer system.
1385121 19 July 1921 --- Bullet nosed anode.
1394560 23 Mar. 1921 --- Method of and apparatus for transmitting radio energy.
1399945 13 Dec. 1921 --- Overlapping loops.
1410730 28 Mar. 1922 --- Hinged top generator.
1424141 25 July 1922 --- Condenser.
1447165 27 Feb. 1923 --- Directional finding, uni-directional reception and transmission.
1454307 8 May 1923 --- Single wave signaling.
1454624 8 May 1923 --- Radio signaling group frequency.
1454629 8 May 1923 --- Single wave coupled compensation.
1454630 8 May 1923 --- Single wave phase angle of residual current.
1454652 8 May 1923 ---  Radio frequency transmission system.


(Report of the Federal Trade Commission on the Radio Industry, 1 December, 1923, Government Printing Office, 1924, Washington, D. C., Appendix, Exhibit A-3, pp. 114-116.)
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