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1956-01-31 |
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Microwave amplitude modulator-i |
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1940-03-22 |
1951-01-16 |
Touvet Guy |
Light communication system
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US2432984A
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*
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1940-04-05 |
1947-12-23 |
Bell Telephone Labor Inc |
Electromagnetic wave reflection system
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*
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1940-04-05 |
1949-02-08 |
Bell Telephone Labor Inc |
Ultra high frequency transmission
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*
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1940-04-05 |
1950-08-22 |
Bell Telephone Labor Inc |
Radio marker system
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1941-05-29 |
1959-05-05 |
Rca Corp |
Pulse echo recognition systems
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1942-06-12 |
1949-03-15 |
Raytheon Mfg Co |
Method and means for controlling the polarization of radiant energy
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1944-04-18 |
1950-10-03 |
Rca Corp |
Radio vision system with high-speed scanner for short radio waves
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1944-04-22 |
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1944-06-15 |
1949-10-04 |
Rca Corp |
Microwave-acoustic wave translator
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*
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1944-07-26 |
1951-01-09 |
Stokes Irving |
Radio system for identifying friendly aircraft and the like
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1944-08-07 |
1948-05-18 |
Carl M Brainard |
Electrically energized visible unit
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1944-09-23 |
1951-08-14 |
Bell Telephone Labor Inc |
Wave guide switching arrangement
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*
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1944-12-21 |
1949-03-01 |
Gulf Research Development Co |
Apparatus for testing insulating materials
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(en)
*
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1945-04-12 |
1950-04-11 |
Rca Corp |
Navigational system with beacon for determining angular position and distance
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1945-06-20 |
1952-06-10 |
Robertson-Shersby-Ha Rob Bruce |
Wave front modifying wave guide system
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1945-07-27 |
1948-12-28 |
Bell Telephone Labor Inc |
Wave translating apparatus
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1945-07-27 |
1948-06-29 |
Bell Telephone Labor Inc |
Wave translating device
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1945-07-31 |
1950-10-10 |
Standard Telephones Cables Ltd |
Radio beacon
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BE471100A
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1945-07-31 |
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1946-01-09 |
1955-03-08 |
Wilkes Gilbert |
Radiant energy transmission system
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1946-03-18 |
1953-10-20 |
Max L Yeater |
Method of testing a metallic sample
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1946-07-03 |
1951-02-27 |
Bell Telephone Labor Inc |
Reflecting system
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1946-07-11 |
1951-01-16 |
Touvet Guy |
Search and orientation system
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1946-08-21 |
1952-04-15 |
Williams Frederic Calland |
Pulse-echo identifying system
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1947-04-26 |
1955-04-26 |
Bell Telephone Labor Inc |
Frequency selective systems
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1947-10-28 |
1950-05-30 |
Rca Corp |
Reflector for radar navigation
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1948-02-06 |
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Shell Int Research |
Werkwijze voor het bereiden van oplosbare condensatieprodukten en met water verdunbare verfbindmiddelen.
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1948-03-16 |
1960-11-08 |
Iams Harley |
Scanning antennas using dielectric with variable refraction
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1948-04-03 |
1951-01-16 |
Int Standard Electric Corp |
Absorbing screen for directive radiation
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1948-04-22 |
1952-07-29 |
Henry P Kalmus |
Device for the amplification of minute space currents
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1948-07-17 |
1951-01-30 |
Robert H Rines |
System and method of communication
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1948-08-17 |
1951-11-27 |
Ruze John |
Rapid scanning system
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1948-10-01 |
1968-10-01 |
Int Standard Electric Corp |
Directive beam rotating means
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1948-10-22 |
1953-06-09 |
Int Standard Electric Corp |
Control of wave length in wave guide and coaxial lines
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1948-11-12 |
1954-09-07 |
Philco Corp |
Means for controlling antenna characteristics in object locating systems of the reflection type
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1950-10-31 |
1955-08-30 |
Rca Corp |
Focusing of radar beams for a tracking radar
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1951-04-06 |
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GB723815A
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1951-06-27 |
1955-02-09 |
Leo De Magondeaux |
Improvements in piezo-electric systems including a passive responder unit
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FR1094934A
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1953-11-19 |
1955-05-25 |
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Antenne pour micro-ondes à balayage de lobe
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1959-04-28 |
1962-12-04 |
Melpar Inc |
Gaseous plasma lens
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1959-04-28 |
1966-07-19 |
Melpar Inc |
Scanning antenna with gaseous plasma phase shifter
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1959-09-23 |
1965-03-30 |
Bendix Corp |
Control of ions in ionic media for communication and other purposes
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1960-04-27 |
1963-03-12 |
William W Balwanz |
Electromagnetic energy measurement apparatus and method
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1960-05-19 |
1968-03-26 |
Litton Ind Of Maryland Inc |
Scanning reflector
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1961-02-10 |
1966-05-17 |
Varian Associates |
Optical communication system
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1961-04-20 |
1964-11-03 |
Thompson Ramo Wooldridge Inc |
Plasma guide microwave selective coupler
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1961-12-14 |
1966-11-22 |
Marconi Co Ltd |
Polarisers for very high frequency electro-magnetic waves
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1962-08-09 |
1969-01-09 |
Philips Patentverwaltung |
Anordnung zur Steuerung der Reflexion von Radarwellen unter Verwendung von als Platte angeordnetem dielektrischem und ferromagnetischem Material
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1963-02-27 |
1966-04-05 |
Gen Electric |
Gas tube reflective surface ionizable by high energy electromagnetic waves
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1963-07-29 |
1968-03-05 |
Trw Inc |
Electronically steerable antenna system utilizing controllable dipolar resonant plasma column
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1968-04-18 |
1982-08-31 |
Allied Corporation |
Communications systems utilizing a retrodirective antenna having controllable reflectivity characteristics
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1973-05-24 |
1976-01-06 |
Brumlik George C |
Optical plasma devices
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1974-08-21 |
1976-05-04 |
The United States Of America As Represented By The Secretary Of The Navy |
Method of and apparatus for ground testing doppler navigation sets-a doppler radar simulator
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1981-09-22 |
1983-08-16 |
Strandberg Engineering Laboratories, Inc. |
Microwave moisture measuring, indicating and control apparatus
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EP0230969A1
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1986-01-24 |
1987-08-05 |
Siemens Aktiengesellschaft |
Phasengesteuerte Antenne
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1986-12-23 |
1989-06-13 |
Milton R M |
Illuminated aerial marker
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GB2202415A
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1987-03-17 |
1988-09-21 |
Ferranti Plc |
Object identification system
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GB8927905D0
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1989-12-09 |
1990-02-14 |
Lucas Ind Plc |
Detection device
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SE510565C2
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1992-11-10 |
1999-06-07 |
Stig Anders Petersson |
Vågledarlins
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DE4336841C1
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1993-10-28 |
1995-05-04 |
Deutsche Aerospace |
Abdeckung für Radarantennen
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2002-11-26 |
2008-01-03 |
Rogers James E |
System for adjusting energy generated by a space-based power system
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2017-04-05 |
2020-09-08 |
Smartsky Networks LLC |
Plasma radome with flexible density control
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