Assignee
EMI LTD
268 granted patents·4,984 citations·filing 1961–1991
Top patents by PatentIndex Score
268 records- 0199US4244998APatterned layers including magnetizable materialEMI LTD·Filed 1977·Granted Jan 13, 1981·99 cites·9 claims
- 0297US3952201ARadiographyEMI LTD·Filed 1974·Granted Apr 20, 1976·79 cites·7 claims
- 0396US4309637ARotating anode X-ray tubeEMI LTD·Filed 1979·Granted Jan 5, 1982·64 cites·20 claims
- 0495US4038596AMethod and apparatus for authenticating a record medium consisting of applying two different strength magnetizing fields and monitoring the remanent fieldsEMI LTD·Filed 1975·Granted Jul 26, 1977·144 cites·11 claims
- 0593US4754493AAutomatic recognition and guidance arrangementsEMI LTD·Filed 1978·Granted Jun 28, 1988·124 cites·9 claims
- 0693US3973128ATomographyEMI LTD·Filed 1974·Granted Aug 3, 1976·52 cites·13 claims
- 0793US3946234AApparatus for examining bodies by means of penetrating radiationEMI LTD·Filed 1974·Granted Mar 23, 1976·51 cites·9 claims
- 0892US4435266AElectroplating arrangementsEMI LTD·Filed 1982·Granted Mar 6, 1984·90 cites·12 claims
- 0992US4081132ACredit cards and other security documentsEMI LTD·Filed 1974·Granted Mar 28, 1978·50 cites·10 claims
- 1091US4284950AImaging systemsEMI LTD·Filed 1979·Granted Aug 18, 1981·48 cites·10 claims
- 1190US3998160AMagnetic ink printing methodEMI LTD·Filed 1975·Granted Dec 21, 1976·67 cites·13 claims
- 1289US4333053AImaging systemsEMI LTD·Filed 1980·Granted Jun 1, 1982·50 cites·24 claims
- 1389US4115697AX-ray tube cooling arrangementEMI LTD·Filed 1977·Granted Sep 19, 1978·43 cites·9 claims
- 1489US4002917ASources of X-radiationEMI LTD·Filed 1975·Granted Jan 11, 1977·63 cites·5 claims
- 1588US4629957ASensing apparatusEMI LTD·Filed 1985·Granted Dec 16, 1986·62 cites·10 claims
- 1688US4297729AEncoding and decoding of digital recordingsEMI LTD·Filed 1978·Granted Oct 27, 1981·61 cites·11 claims
- 1787US4300096AImaging systemsEMI LTD·Filed 1979·Granted Nov 10, 1981·35 cites·16 claims
- 1887US4180207ASecurity material and secure document system using said materialEMI LTD·Filed 1977·Granted Dec 25, 1979·46 cites·19 claims
- 1986US4257272AUltrasonic apparatusEMI LTD·Filed 1979·Granted Mar 24, 1981·70 cites·22 claims
- 2086US4181856AArrangements for detectors of radiationEMI LTD·Filed 1978·Granted Jan 1, 1980·68 cites·1 claims
- 2186US4070581ADetection of radiationEMI LTD·Filed 1976·Granted Jan 24, 1978·36 cites·11 claims
- 2285US4862176AIdentification of friend or foe (IFF) systemsEMI LTD·Filed 1978·Granted Aug 29, 1989·41 cites·10 claims
- 2385US4577513AStrain sensing arrangementEMI LTD·Filed 1983·Granted Mar 25, 1986·48 cites·7 claims
- 2485US4254778AImaging systemsEMI LTD·Filed 1979·Granted Mar 10, 1981·47 cites·9 claims
- 2585US4186944ASecurity documentEMI LTD·Filed 1978·Granted Feb 5, 1980·38 cites·6 claims
- 2684US4164728ACorrelation techniquesEMI LTD·Filed 1977·Granted Aug 14, 1979·41 cites·8 claims
- 2784US3940625AApparatus for examining objects by means of penetrating radiationEMI LTD·Filed 1974·Granted Feb 24, 1976·28 cites·7 claims
- 2883US4517679ACommunication over noisy linesEMI LTD·Filed 1983·Granted May 14, 1985·77 cites·7 claims
- 2982US4107563AX-ray generating tubesEMI LTD·Filed 1977·Granted Aug 15, 1978·38 cites·6 claims
- 3081US4117366ARadiation detectorsEMI LTD·Filed 1974·Granted Sep 26, 1978·21 cites·4 claims
- 3181US4010409AAutomatic vehicle guidance systemsEMI LTD·Filed 1973·Granted Mar 1, 1977·48 cites·5 claims
- 3280US4233662ARadiographyEMI LTD·Filed 1978·Granted Nov 11, 1980·27 cites·4 claims
- 3380US4228348ASecurity document and systemEMI LTD·Filed 1979·Granted Oct 14, 1980·22 cites·10 claims
- 3480US4222104ARadiographyEMI LTD·Filed 1978·Granted Sep 9, 1980·26 cites·7 claims
- 3580US4125858AVideo display arrangementsEMI LTD·Filed 1977·Granted Nov 14, 1978·28 cites·10 claims
- 3679US4284948AImaging systemsEMI LTD·Filed 1979·Granted Aug 18, 1981·25 cites·19 claims
- 3779US4162775ATracking and/or guidance systemsEMI LTD·Filed 1976·Granted Jul 31, 1979·36 cites·3 claims
- 3879US4126805AX-ray tubesEMI LTD·Filed 1976·Granted Nov 21, 1978·18 cites·13 claims
- 3978US4086492ADisplay apparatus for use in radiographyEMI LTD·Filed 1977·Granted Apr 25, 1978·31 cites·6 claims
- 4078US4052619AMethod and apparatus for measuring and analyzing radiation transmitted at plural anglesEMI LTD·Filed 1975·Granted Oct 4, 1977·24 cites·6 claims
- 4178US3975734ASynthetic aperture radars including moving target indicationEMI LTD·Filed 1974·Granted Aug 17, 1976·30 cites·4 claims
- 4277US4315216AImaging systemsEMI LTD·Filed 1979·Granted Feb 9, 1982·26 cites·16 claims
- 4377US4160909AX-ray tube arrangementsEMI LTD·Filed 1977·Granted Jul 10, 1979·17 cites·5 claims
- 4476US4350660AAmmonia gas sensorsEMI LTD·Filed 1981·Granted Sep 21, 1982·39 cites·4 claims
- 4576US4322684AImaging systemsEMI LTD·Filed 1979·Granted Mar 30, 1982·22 cites·12 claims
- 4676US4242400AMagnetically structured materialsEMI LTD·Filed 1978·Granted Dec 30, 1980·16 cites·20 claims
- 4776US4048503ARadiography with noble gas containing detector cellsEMI LTD·Filed 1976·Granted Sep 13, 1977·17 cites·11 claims
- 4875US4223384ARadiographyEMI LTD·Filed 1977·Granted Sep 16, 1980·27 cites·14 claims
- 4975US4104513AMagnetic recordingEMI LTD·Filed 1975·Granted Aug 1, 1978·18 cites·2 claims
- 5075US3974625ALoading articles into bagsEMI LTD·Filed 1973·Granted Aug 17, 1976·29 cites·7 claims
Showing the top 50 of 268 patent records by PatentIndex Score.
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