Inventor · disambiguated record
Francis R. Steel
Also filed as: STEEL FRANCIS R · STEEL FRANCIS ROBERT
14 granted patents·1,324 citations·filing 1975–1991
95Inventor score
Files withMOTOROLA INC14
Top patents by PatentIndex Score
14 records- 0196US4918437AHigh data rate simulcast communication systemMOTOROLA INC·Filed 1988·Granted Apr 17, 1990·137 cites·10 claims
- 0296US4121218AAdjustable antenna arrangement for a portable radioMOTOROLA INC·Filed 1977·Granted Oct 17, 1978·116 cites·9 claims
- 0392US4875038AFrequency division multiplexed acknowledge back paging systemMOTOROLA INC·Filed 1988·Granted Oct 17, 1989·239 cites·21 claims
- 0491US4737969ASpectrally efficient digital modulation method and apparatusMOTOROLA INC·Filed 1987·Granted Apr 12, 1988·136 cites·5 claims
- 0591US4016501ASwitching amplifier systemMOTOROLA INC·Filed 1975·Granted Apr 5, 1977·30 cites·7 claims
- 0690US4968966AHigh data rate simulcast communication systemMOTOROLA INC·Filed 1989·Granted Nov 6, 1990·84 cites·9 claims
- 0790US4891637AAcknowledge back pager with apparatus for controlling transmit frequencyMOTOROLA INC·Filed 1988·Granted Jan 2, 1990·118 cites·7 claims
- 0889US4052672AExtended phase-range, high fidelity modulator arrangementMOTOROLA INC·Filed 1976·Granted Oct 4, 1977·44 cites·5 claims
- 0984US5142279AAcknowledge back paging system having the capability of matching variable length data messages to pager addressesMOTOROLA INC·Filed 1991·Granted Aug 25, 1992·166 cites·4 claims
- 1083US3993956ADigital detection system for differential phase shift keyed signalsMOTOROLA INC·Filed 1975·Granted Nov 23, 1976·51 cites·16 claims
- 1182US4016510ABroadband two-port isolatorMOTOROLA INC·Filed 1976·Granted Apr 5, 1977·27 cites·9 claims
- 1281US4825193AAcknowledge back pager with adaptive variable transmitter output powerMOTOROLA INC·Filed 1988·Granted Apr 25, 1989·129 cites·15 claims
- 1363US4888793APhase correcting DPSK/PSK receiver with digitally stored phase correction derived from received dataMOTOROLA INC·Filed 1988·Granted Dec 19, 1989·28 cites·12 claims
- 1457US4942592ASynchronous receiver for minimum shift keying transmissionMOTOROLA INC·Filed 1989·Granted Jul 17, 1990·19 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →