Assignee
AMERICAN MAGNETICS CORP
US·25 granted patents·911 citations·filing 1974–1994
Top patents by PatentIndex Score
25 records- 0194US4028734APlural magnetic head assembly with independently supporting structureAMERICAN MAGNETICS CORP·Filed 1976·Granted Jun 7, 1977·49 cites·7 claims
- 0291US5331138AHybrid card readerAMERICAN MAGNETICS CORP·Filed 1992·Granted Jul 19, 1994·165 cites·8 claims
- 0391US5091961AMagnetic ink character decoderAMERICAN MAGNETICS CORP·Filed 1989·Granted Feb 25, 1992·157 cites·10 claims
- 0486US4864717AMethod of making a digital magnetic head structureAMERICAN MAGNETICS CORP·Filed 1988·Granted Sep 12, 1989·35 cites·2 claims
- 0586US4797767ADigital magnetic head structureAMERICAN MAGNETICS CORP·Filed 1986·Granted Jan 10, 1989·35 cites·9 claims
- 0681US4628195ACredit card security systemAMERICAN MAGNETICS CORP·Filed 1984·Granted Dec 9, 1986·57 cites·12 claims
- 0780US3940796ACard readout apparatusAMERICAN MAGNETICS CORP·Filed 1974·Granted Feb 24, 1976·29 cites·4 claims
- 0873US4593328ATiming wheel for card encoderAMERICAN MAGNETICS CORP·Filed 1980·Granted Jun 3, 1986·17 cites·2 claims
- 0967US3976858ACard reader assembly with manual transducerAMERICAN MAGNETICS CORP·Filed 1975·Granted Aug 24, 1976·21 cites·8 claims
- 1066US5101097AHand swipe magnetic stripe encoderAMERICAN MAGNETICS CORP·Filed 1990·Granted Mar 31, 1992·41 cites·6 claims
- 1165US5311003AHand-operated magnetic stripe card readerAMERICAN MAGNETICS CORP·Filed 1992·Granted May 10, 1994·34 cites·6 claims
- 1263US5204513ADecoder for magnetic stripe recordingAMERICAN MAGNETICS CORP·Filed 1990·Granted Apr 20, 1993·51 cites·4 claims
- 1362US4777540AMagnetic card reader with head stop arrangementAMERICAN MAGNETICS CORP·Filed 1986·Granted Oct 11, 1988·17 cites·2 claims
- 1462US4514623AAutomatic teller machine with entrance adapted to prevent access by foreign objectsAMERICAN MAGNETICS CORP·Filed 1983·Granted Apr 30, 1985·24 cites·8 claims
- 1561US5491327AUniversal magnetic medium encoder with tilt-compensating apparatusAMERICAN MAGNETICS CORP·Filed 1994·Granted Feb 13, 1996·29 cites·9 claims
- 1657US5049871ALoop communication systemAMERICAN MAGNETICS CORP·Filed 1990·Granted Sep 17, 1991·44 cites·8 claims
- 1755US5554840AHybrid card readerAMERICAN MAGNETICS CORP·Filed 1994·Granted Sep 10, 1996·21 cites·4 claims
- 1848US4742213ACredit card reading apparatus with reliable optical path interrupt meansAMERICAN MAGNETICS CORP·Filed 1985·Granted May 3, 1988·15 cites·6 claims
- 1944US4843220AAutomatic data capture for multiple form point of sale slip packsAMERICAN MAGNETICS CORP·Filed 1987·Granted Jun 27, 1989·47 cites·12 claims
- 2037US4692602AApparatus for sensing and/or writing information on cards, passports and checks and the likeAMERICAN MAGNETICS CORP·Filed 1985·Granted Sep 8, 1987·8 cites·5 claims
- 2136US4598479ATiming wheel for card encoderAMERICAN MAGNETICS CORP·Filed 1985·Granted Jul 8, 1986·6 cites·1 claims
- 2230US4490439ASuperconductor with improved persistence characteristicsAMERICAN MAGNETICS CORP·Filed 1984·Granted Dec 25, 1984·4 cites·4 claims
- 2329US4464687AJitter-free gear arrangement for equipment requiring precision mechanical movementAMERICAN MAGNETICS CORP·Filed 1982·Granted Aug 7, 1984·0 cites·16 claims
- 2429US4344057ATransverse magnetic load containment structure for use in MHD magnetsAMERICAN MAGNETICS CORP·Filed 1980·Granted Aug 10, 1982·3 cites·19 claims
- 2525US5091807ARecorder system with demand actuationAMERICAN MAGNETICS CORP·Filed 1989·Granted Feb 25, 1992·2 cites·7 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →