Assignee
SPERRY RAND CORP
587 granted patents·13,119 citations·filing 1958–1979
Top patents by PatentIndex Score
587 records- 0198US4112502AConditional bypass of error correction for dual memory access time selectionSPERRY RAND CORP·Filed 1977·Granted Sep 5, 1978·192 cites·3 claims
- 0298US4110605AWeight and balance computer apparatus for aircraftSPERRY RAND CORP·Filed 1977·Granted Aug 29, 1978·112 cites·28 claims
- 0398US4056107ACrop residue deflector meansSPERRY RAND CORP·Filed 1976·Granted Nov 1, 1977·127 cites·8 claims
- 0498US3968476ASpurious signal removal in optical processor fingerprint identification apparatusSPERRY RAND CORP·Filed 1974·Granted Jul 6, 1976·134 cites·5 claims
- 0597US3995212AApparatus and method for sensing a liquid with a single wire transmission lineSPERRY RAND CORP·Filed 1975·Granted Nov 30, 1976·107 cites·10 claims
- 0696US4144449APosition detection apparatusSPERRY RAND CORP·Filed 1977·Granted Mar 13, 1979·193 cites·11 claims
- 0796US4058851AConditional bypass of error correction for dual memory access time selectionSPERRY RAND CORP·Filed 1976·Granted Nov 15, 1977·119 cites·5 claims
- 0896USD245948SFacial cleaning apparatusSPERRY RAND CORP·Filed 1976·Granted Oct 4, 1977·41 cites·1 claims
- 0996US3968475ADigital processor for extracting data from a binary imageSPERRY RAND CORP·Filed 1974·Granted Jul 6, 1976·76 cites·7 claims
- 1095US4168541APaired least recently used block replacement systemSPERRY RAND CORP·Filed 1978·Granted Sep 18, 1979·83 cites·10 claims
- 1195US4062172ARaising and lowering mechanism for the rear chamber in a crop material roll forming machineSPERRY RAND CORP·Filed 1976·Granted Dec 13, 1977·52 cites·23 claims
- 1295US4042132ASpout control apparatus for agricultural machinesSPERRY RAND CORP·Filed 1976·Granted Aug 16, 1977·110 cites·8 claims
- 1394US4152723AMethod of inspecting circuit boards and apparatus thereforSPERRY RAND CORP·Filed 1977·Granted May 1, 1979·69 cites·15 claims
- 1494US4142108AGeothermal energy conversion systemSPERRY RAND CORP·Filed 1977·Granted Feb 27, 1979·88 cites·32 claims
- 1594US3952566ABearing and lubricant film test method and apparatusSPERRY RAND CORP·Filed 1975·Granted Apr 27, 1976·58 cites·32 claims
- 1693US4268905AAutonomous fault diagnosis for disk drive using an internal microprocessorSPERRY RAND CORP·Filed 1978·Granted May 19, 1981·54 cites·10 claims
- 1793US4115847AAutomatic flight control system with operatively monitored digital computerSPERRY RAND CORP·Filed 1977·Granted Sep 19, 1978·87 cites·25 claims
- 1893US4086804APrecision pneumatic pressure supply systemSPERRY RAND CORP·Filed 1976·Granted May 2, 1978·63 cites·16 claims
- 1993US4075823ACombine harvesterSPERRY RAND CORP·Filed 1976·Granted Feb 28, 1978·44 cites·12 claims
- 2093US4057784ABi-directional scanner assemblySPERRY RAND CORP·Filed 1976·Granted Nov 8, 1977·113 cites·9 claims
- 2193US4004404ARotary combine with improved concaveSPERRY RAND CORP·Filed 1976·Granted Jan 25, 1977·54 cites·13 claims
- 2293US3995761AAnti-lowering device for a boom loaderSPERRY RAND CORP·Filed 1975·Granted Dec 7, 1976·47 cites·9 claims
- 2393US3937889AData communication apparatus for use in a telephone systemSPERRY RAND CORP·Filed 1973·Granted Feb 10, 1976·199 cites·6 claims
- 2492US4248248AInterrupted infeed flight means for combine rotorSPERRY RAND CORP·Filed 1979·Granted Feb 3, 1981·40 cites·8 claims
- 2592US4175827AElectro-optical multiplexer having multiple frequency resonant excitationSPERRY RAND CORP·Filed 1978·Granted Nov 27, 1979·53 cites·20 claims
- 2692US4160970AElectromagnetic wave telemetry system for transmitting downhole parameters to locations thereaboveSPERRY RAND CORP·Filed 1977·Granted Jul 10, 1979·102 cites·4 claims
- 2792US4131130APneumatic pressure control valveSPERRY RAND CORP·Filed 1977·Granted Dec 26, 1978·43 cites·9 claims
- 2892US4120258AVariable ratio helmSPERRY RAND CORP·Filed 1976·Granted Oct 17, 1978·45 cites·5 claims
- 2992US4094479ASide slip angle command SCAS for aircraftSPERRY RAND CORP·Filed 1977·Granted Jun 13, 1978·60 cites·8 claims
- 3092US4081756ADual channel signal detector circuitSPERRY RAND CORP·Filed 1976·Granted Mar 28, 1978·45 cites·21 claims
- 3192US4027348ASkin treatment applianceSPERRY RAND CORP·Filed 1976·Granted Jun 7, 1977·141 cites·13 claims
- 3292US4021097ADistributive tee couplerSPERRY RAND CORP·Filed 1976·Granted May 3, 1977·68 cites·9 claims
- 3392US3963301AMother-board interconnection systemSPERRY RAND CORP·Filed 1974·Granted Jun 15, 1976·55 cites·4 claims
- 3491US4177625APull-type agricultural machineSPERRY RAND CORP·Filed 1978·Granted Dec 11, 1979·69 cites·9 claims
- 3591US4143467ASemi-automatic self-contained magnetic azimuth detector calibration apparatus and methodSPERRY RAND CORP·Filed 1978·Granted Mar 13, 1979·73 cites·29 claims
- 3691US4124970AAutomatic reel height control for a harvester header having a flexible cutterbarSPERRY RAND CORP·Filed 1977·Granted Nov 14, 1978·82 cites·14 claims
- 3791US4093087AUnloading tube arrangement for combine harvester grain tankSPERRY RAND CORP·Filed 1977·Granted Jun 6, 1978·49 cites·15 claims
- 3891US4074648AAdaptive autopilot for marine vesselsSPERRY RAND CORP·Filed 1976·Granted Feb 21, 1978·56 cites·10 claims
- 3991US4019260AHair treatment method and deviceSPERRY RAND CORP·Filed 1975·Granted Apr 26, 1977·63 cites·32 claims
- 4091US3975711AReal time fingerprint recording terminalSPERRY RAND CORP·Filed 1974·Granted Aug 17, 1976·208 cites·8 claims
- 4190US4075465AKeyboard overlaySPERRY RAND CORP·Filed 1976·Granted Feb 21, 1978·66 cites·6 claims
- 4290US4067059AShared direct memory access controllerSPERRY RAND CORP·Filed 1976·Granted Jan 3, 1978·137 cites·15 claims
- 4389US4150375AInterferometric protective system for vehiclesSPERRY RAND CORP·Filed 1978·Granted Apr 17, 1979·50 cites·10 claims
- 4489US4149148AAircraft flight instrument display systemSPERRY RAND CORP·Filed 1977·Granted Apr 10, 1979·50 cites·22 claims
- 4589US4127981ADrive means for a crop harvesting machineSPERRY RAND CORP·Filed 1977·Granted Dec 5, 1978·48 cites·9 claims
- 4689US4057847ARemote controlled test interface unitSPERRY RAND CORP·Filed 1976·Granted Nov 8, 1977·161 cites·14 claims
- 4789US4028815ATemperature compensated toroidal accelerometerSPERRY RAND CORP·Filed 1974·Granted Jun 14, 1977·50 cites·13 claims
- 4889US4016548ACommunication multiplexer moduleSPERRY RAND CORP·Filed 1975·Granted Apr 5, 1977·94 cites·10 claims
- 4989US3959957ACrop harvesting machine header suspension systemSPERRY RAND CORP·Filed 1975·Granted Jun 1, 1976·54 cites·11 claims
- 5088US4167844AAutomatic twine wrapping apparatusSPERRY RAND CORP·Filed 1978·Granted Sep 18, 1979·33 cites·11 claims
Showing the top 50 of 587 patent records by PatentIndex Score.
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