Collins Radio Co
Collins RaActive Patents
0
Total Holdings
128
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3810018A | Distortion compensator for phase modulation systems | Expired / Lapsed | 1972-06-13 | 1974-05-07 | 10 | Details |
| US3810100A | Looped direct switching system | Expired / Lapsed | 1971-12-16 | 1974-05-07 | 53 | Details |
| US3755789A | Expandable computer processor and communication system | Expired / Lapsed | 1972-10-30 | 1973-08-28 | 15 | Details |
| US3692941A | Data exchange and coupling apparatus | Expired / Lapsed | 1970-09-23 | 1972-09-19 | 14 | Details |
| US3681759A | Data loop synchronizing apparatus | Expired / Lapsed | 1970-08-06 | 1972-08-01 | 21 | Details |
| US3665380A | Electronic aids for aquanauts | Expired / Lapsed | 1970-06-18 | 1972-05-23 | 27 | Details |
| US3659271A | Multichannel communication system | Expired / Lapsed | 1970-10-16 | 1972-04-25 | 5 | Details |
| US3651315A | Digital products inspection system | Expired / Lapsed | 1970-05-14 | 1972-03-21 | 42 | Details |
| US3618085A | Error detector for digital dme systems | Expired / Lapsed | 1969-11-14 | 1971-11-02 | 8 | Details |
| US3568067A | Frequency discriminator with output indicative of differenc… | Expired / Lapsed | 1969-06-13 | 1971-03-02 | 10 | Details |
| US3544976A | Digitalized communication system with computation and contr… | Expired / Lapsed | 1968-07-02 | 1970-12-01 | 0 | Details |
| US3539825A | Highly linear voltage to frequency converter | Expired / Lapsed | 1967-01-24 | 1970-11-10 | 0 | Details |
| US3514719A | Electric analog angular rate deriving circuit | Expired / Lapsed | 1967-06-21 | 1970-05-26 | 0 | Details |
| US3506815A | Binary converter | Expired / Lapsed | 1966-12-28 | 1970-04-14 | 0 | Details |
| US3465339A | Method and means for detecting air turbulence | Expired / Lapsed | 1965-10-22 | 1969-09-02 | 0 | Details |
| US3436655A | Rotation measuring device for very slowly rotating shaft | Expired / Lapsed | 1966-04-20 | 1969-04-01 | 0 | Details |
| US3413562A | Clipper amplifier circuit | Expired / Lapsed | 1967-02-20 | 1968-11-26 | 0 | Details |
| US3402389A | Message verification using associative memory techniques | Expired / Lapsed | 1965-01-06 | 1968-09-17 | 0 | Details |
| US3384873A | Selective calling system | Expired / Lapsed | 1965-01-22 | 1968-05-21 | 0 | Details |
| US3379992A | Multiple frequency signal generator | Expired / Lapsed | 1965-10-18 | 1968-04-23 | 0 | Details |
| US3356918A | Tape controlled positioning and tuning system | Expired / Lapsed | 1964-07-23 | 1967-12-05 | 2 | Details |
| US3350697A | Storage means for receiving, assembling, and distributing t… | Expired / Lapsed | 1965-02-24 | 1967-10-31 | 2 | Details |
| US3350650A | Noise and audio controlled squelch circuit | Expired / Lapsed | 1964-06-17 | 1967-10-31 | 2 | Details |
| US3341833A | Magnetic tape recording and reproduction system | Expired / Lapsed | 1963-12-19 | 1967-09-12 | 2 | Details |
| US3319178A | Plural loop automatic phase control | Expired / Lapsed | 1965-09-27 | 1967-05-09 | 2 | Details |
| US3300764A | Data processor | Expired / Lapsed | 1963-08-26 | 1967-01-24 | 2 | Details |
| US3297964A | Error avoidance system for sampling type afc circuit | Expired / Lapsed | 1963-10-09 | 1967-01-10 | 2 | Details |
| US3238459A | Unambiguous local phase reference for data detection | Expired / Lapsed | 1961-12-14 | 1966-03-01 | 2 | Details |
| US3230352A | Means for dividing a frequency by any number | Expired / Lapsed | 1962-06-18 | 1966-01-18 | 2 | Details |
| US3218644A | Frequency independent slot antenna | Expired / Lapsed | 1963-06-19 | 1965-11-16 | 2 | Details |
| US3218542A | Electronic circuit protector | Expired / Lapsed | 1962-06-25 | 1965-11-16 | 1 | Details |
| US3212023A | Digital stabilized master oscillator with auxiliary high fr… | Expired / Lapsed | 1964-05-07 | 1965-10-12 | 2 | Details |
| US3210749A | Flag warning circuit | Expired / Lapsed | 1963-05-31 | 1965-10-05 | 2 | Details |
| US3204045A | Automatic ring thru system | Expired / Lapsed | 1962-10-30 | 1965-08-31 | 2 | Details |
| US3193801A | Large gap data communication system | Expired / Lapsed | 1959-09-28 | 1965-07-06 | 2 | Details |
| US3167721A | Transistorized noise pulse blanking network including feedb… | Expired / Lapsed | 1963-02-18 | 1965-01-26 | 1 | Details |
| US3160815A | Coherent frequency difference detector having direct-curren… | Expired / Lapsed | 1962-09-14 | 1964-12-08 | 2 | Details |
| US3137816A | Transmitter automatic frequency control network including m… | Expired / Lapsed | 1962-08-06 | 1964-06-16 | 2 | Details |
| US3131377A | Small gap data tape communication system | Expired / Lapsed | 1959-09-28 | 1964-04-28 | 2 | Details |
| US3109971A | High efficiency instrument servo amplifier for microminiatu… | Expired / Lapsed | 1961-09-08 | 1963-11-05 | 2 | Details |
| US3106684A | Amplifier with interrupted positive feedback | Expired / Lapsed | 1960-07-15 | 1963-10-08 | 1 | Details |
| US3102238A | Encoder with one frequency indicating one binary logic stat… | Expired / Lapsed | 1961-11-13 | 1963-08-27 | 2 | Details |
| US3102236A | Squelch circuit controlled by demodulated voice signal | Expired / Lapsed | 1960-05-05 | 1963-08-27 | 2 | Details |
| US3080556A | Picture communication system | Expired / Lapsed | 1959-03-13 | 1963-03-05 | 2 | Details |
| US3038089A | Duo-transistor amplitude and frequency sensitive electronic… | Expired / Lapsed | 1959-09-04 | 1962-06-05 | 0 | Details |
| US3028551A | Digital phase storage circuit | Expired / Lapsed | 1958-05-05 | 1962-04-03 | 0 | Details |
| US3020397A | Intensity comparing system for determining fraction of trav… | Expired / Lapsed | 1956-10-11 | 1962-02-06 | 0 | Details |
| US3013211A | Counter type phase-pulse detector | Expired / Lapsed | 1959-11-20 | 1961-12-12 | 0 | Details |
| US3000121A | Automatic vertical control of earth moving machines | Expired / Lapsed | 1956-05-21 | 1961-09-19 | 0 | Details |
| US2988821A | Simulated perspective display of aircraft landing strip on … | Expired / Lapsed | 1957-08-30 | 1961-06-20 | 0 | Details |
| US2984729A | Multivibrator type oven control | Expired / Lapsed | 1958-11-10 | 1961-05-16 | 0 | Details |
| US2984077A | Method of using the peltier effect for cooling equipment | Expired / Lapsed | 1958-10-24 | 1961-05-16 | 0 | Details |
| US2980898A | Fault location system | Expired / Lapsed | 1957-09-20 | 1961-04-18 | 0 | Details |
| US2977417A | Minimum-shift data communication system | Expired / Lapsed | 1958-08-18 | 1961-03-28 | 0 | Details |
| US2973420A | Oven | Expired / Lapsed | 1959-01-02 | 1961-02-28 | 0 | Details |
| US2973509A | Pulse coding system | Expired / Lapsed | 1957-01-11 | 1961-02-28 | 0 | Details |
| US2969486A | Voice-operated control system | Expired / Lapsed | 1958-08-26 | 1961-01-24 | 0 | Details |
| US2969468A | Frequency and phase discriminator | Expired / Lapsed | 1957-02-21 | 1961-01-24 | 0 | Details |
| US2938670A | Means for measuring correlation | Expired / Lapsed | 1957-02-28 | 1960-05-31 | 0 | Details |
| US2939135A | Aircraft proximity warning system with incorporated testing… | Expired / Lapsed | 1956-10-08 | 1960-05-31 | 0 | Details |
| US2925965A | Guided missile ordnance system | Expired / Lapsed | 1956-03-07 | 1960-02-23 | 0 | Details |
| US2921247A | On-off and proportional control transistor servosystem | Expired / Lapsed | 1958-11-03 | 1960-01-12 | 0 | Details |
| US2905812A | High information capacity phase-pulse multiplex system | Expired / Lapsed | 1955-04-18 | 1959-09-22 | 0 | Details |
| US2894133A | Tuning system for frequency synthesizing means | Expired / Lapsed | 1957-04-24 | 1959-07-07 | 0 | Details |
| US2888633A | Voltage regulator with limited current drain | Expired / Lapsed | 1958-05-09 | 1959-05-26 | 0 | Details |
| US2886758A | Voice-operated radio tuning system | Expired / Lapsed | 1957-05-28 | 1959-05-12 | 0 | Details |
| US2875965A | Automatic flight control system | Expired / Lapsed | 1954-06-18 | 1959-03-03 | 0 | Details |
| US2870326A | Device for selecting signal of greatest energy | Expired / Lapsed | 1956-05-14 | 1959-01-20 | 0 | Details |
| US2858407A | Shock-mounted oven device | Expired / Lapsed | 1957-04-24 | 1958-10-28 | 0 | Details |
| US2858434A | Precision step voltage generator | Expired / Lapsed | 1956-09-25 | 1958-10-28 | 0 | Details |
| US2857672A | Navigation system | Expired / Lapsed | 1953-09-23 | 1958-10-28 | 0 | Details |
| US2852726A | Starting circuit for synchronous motor | Expired / Lapsed | 1957-02-21 | 1958-09-16 | 0 | Details |
| US2852622A | Signal-to-noise squelch control circuit | Expired / Lapsed | 1955-01-13 | 1958-09-16 | 0 | Details |
| US2846572A | Frequency modulation transceiver with combined frequency co… | Expired / Lapsed | 1956-04-23 | 1958-08-05 | 0 | Details |
| US2833980A | End-stop circuit for servo systems | Expired / Lapsed | 1956-01-04 | 1958-05-06 | 0 | Details |
| US2825042A | Spring contact fingers for shield plates | Expired / Lapsed | 1954-06-24 | 1958-02-25 | 0 | Details |
| US2820655A | Tenacious fastener | Expired / Lapsed | 1953-12-18 | 1958-01-21 | 0 | Details |
| US2802939A | Squelch system | Expired / Lapsed | 1954-03-02 | 1957-08-13 | 0 | Details |
| US2802992A | Elimination of spurious response in an electromechanical fi… | Expired / Lapsed | 1953-05-07 | 1957-08-13 | 0 | Details |
| US2800596A | Distributing delay line using non-linear parameters | Expired / Lapsed | 1956-05-24 | 1957-07-23 | 0 | Details |
| US2800292A | Automatic landing system | Expired / Lapsed | 1948-05-12 | 1957-07-23 | 0 | Details |
| US2779869A | Amplitude distribution analyzer | Expired / Lapsed | 1953-07-20 | 1957-01-29 | 0 | Details |
| US2775693A | Pulse amplitude selector | Expired / Lapsed | 1953-02-25 | 1956-12-25 | 0 | Details |
| US2762895A | Constant temperature device | Expired / Lapsed | 1952-10-25 | 1956-09-11 | 0 | Details |
| US2746151A | Tracking mechanism | Expired / Lapsed | 1951-11-17 | 1956-05-22 | 0 | Details |
| US2741855A | Gyro stabilized compass | Expired / Lapsed | 1952-11-10 | 1956-04-17 | 0 | Details |
| US2713084A | Odd mark detector | Expired / Lapsed | 1953-04-17 | 1955-07-12 | 0 | Details |
| US2698433A | Visual display for radiometric receivers | Expired / Lapsed | 1951-12-07 | 1954-12-28 | 0 | Details |
| US2685071A | Expansible conductive seal for resonant cavities | Expired / Lapsed | 1951-03-26 | 1954-07-27 | 0 | Details |
| US2676289A | Shaft positioning mechanism for binary code operation | Expired / Lapsed | 1951-11-02 | 1954-04-20 | 0 | Details |
| US2676245A | Polar communication system | Expired / Lapsed | 1949-12-02 | 1954-04-20 | 0 | Details |
| US2656516A | Filter using transverse supporting means | Expired / Lapsed | 1952-08-14 | 1953-10-20 | 0 | Details |
| US2656497A | Shaft positioning system | Expired / Lapsed | 1950-02-10 | 1953-10-20 | 0 | Details |
| US2645321A | Automatic tuning control for radio apparatus and the like | Expired / Lapsed | 1948-07-15 | 1953-07-14 | 0 | Details |
| US2641709A | Frequency correction device | Expired / Lapsed | 1952-02-13 | 1953-06-09 | 0 | Details |
| US2639422A | Forward radar echo-ranging method and system | Expired / Lapsed | 1949-03-08 | 1953-05-19 | 0 | Details |
| US2637820A | Current integrator | Expired / Lapsed | 1950-03-03 | 1953-05-05 | 0 | Details |
| US2614218A | Timing device | Expired / Lapsed | 1949-11-23 | 1952-10-14 | 0 | Details |
| US2606287A | Linear sweep generator | Expired / Lapsed | 1950-04-10 | 1952-08-05 | 0 | Details |
| US2604965A | Automatic shaft positioning apparatus | Expired / Lapsed | 1949-07-26 | 1952-07-29 | 0 | Details |
| US2599896A | Dielectrically wedged biconical antenna | Expired / Lapsed | 1948-03-12 | 1952-06-10 | 0 | Details |
| US2599889A | Computer device for navigation systems and the like | Expired / Lapsed | 1947-09-16 | 1952-06-10 | 0 | Details |
| US2580148A | Antinoise carrier receiving system | Expired / Lapsed | 1947-12-09 | 1951-12-25 | 0 | Details |
| US2572964A | Differential tuning mechanism | Expired / Lapsed | 1950-03-31 | 1951-10-30 | 0 | Details |
| US2548278A | Aircraft course stabilizing means | Expired / Lapsed | 1949-08-17 | 1951-04-10 | 0 | Details |
| US2546980A | Shaft positioning apparatus | Expired / Lapsed | 1943-01-18 | 1951-04-03 | 0 | Details |
| US2543523A | Noise control arrangement for radio receivers and the like | Expired / Lapsed | 1946-02-27 | 1951-02-27 | 0 | Details |
| US2516704A | Vacuum gauge of the ionization producing type | Expired / Lapsed | 1949-06-11 | 1950-07-25 | 0 | Details |
| US2516181A | High-power audio frequency amplifier | Expired / Lapsed | 1948-05-03 | 1950-07-25 | 0 | Details |
| US2505511A | Remotely controlled antenna tuning and loading system | Expired / Lapsed | 1948-11-08 | 1950-04-25 | 0 | Details |
| US2476840A | Direct reading multifrequency generator | Expired / Lapsed | 1947-12-30 | 1949-07-19 | 0 | Details |
| US2476673A | Shaft positioning control system | Expired / Lapsed | 1947-10-02 | 1949-07-19 | 0 | Details |
| US2472979A | Semiautomatic tuner device for radio apparatus and the like | Expired / Lapsed | 1946-05-23 | 1949-06-14 | 0 | Details |
| US2467422A | Automatic radio control apparatus | Expired / Lapsed | 1946-08-02 | 1949-04-19 | 0 | Details |
| US2466776A | Automatic shaft controlling apparatus | Expired / Lapsed | 1946-12-14 | 1949-04-12 | 0 | Details |
| US2457134A | Radio system for transmission and reception on the same fre… | Expired / Lapsed | 1944-02-28 | 1948-12-28 | 0 | Details |
| US2453451A | Voltage regulator system | Expired / Lapsed | 1947-05-21 | 1948-11-09 | 0 | Details |
| US2447490A | Radio transmitting and receiving system | Expired / Lapsed | 1944-02-28 | 1948-08-24 | 0 | Details |
| US2436172A | Automatic tuning control for radio systems and the like | Expired / Lapsed | 1946-12-27 | 1948-02-17 | 0 | Details |
| US2411166A | Frequency multiplier | Expired / Lapsed | 1942-10-02 | 1946-11-19 | 0 | Details |
| US2402606A | Radio transmitting and receiving system | Expired / Lapsed | 1944-02-28 | 1946-06-25 | 0 | Details |
| US2396714A | Shaft positioning apparatus | Expired / Lapsed | 1944-07-08 | 1946-03-19 | 0 | Details |
| US2393353A | Method and apparatus for medium high frequency direction fi… | Expired / Lapsed | 1943-07-19 | 1946-01-22 | 0 | Details |
| US2372243A | Volume limiter circuit | Expired / Lapsed | 1942-09-04 | 1945-03-27 | 0 | Details |
| US2252699A | Azimuth radio beacon system | Expired / Lapsed | 1938-07-30 | 1941-08-19 | 0 | Details |
| US2173145A | Single side-band transmitter | Expired / Lapsed | 1937-11-26 | 1939-09-19 | 0 | Details |
| US2099671A | Antenna system | Expired / Lapsed | 1935-09-20 | 1937-11-23 | 0 | Details |
| US2019481A | High frequency modulation system | Expired / Lapsed | 1930-04-05 | 1935-11-05 | 0 | Details |