Inventor · disambiguated record
Philip Extance
Also filed as: EXTANCE PHILIP
10 granted patents·323 citations·filing 1984–1988
92Inventor score
Top patents by PatentIndex Score
10 records- 0194US4587509AHall effect device with overlapping flux concentratorsSTC PLC·Filed 1984·Granted May 6, 1986·54 cites·18 claims
- 0288US4774494APosition encoder employing three or more colorsLUCAS IND PLC·Filed 1986·Granted Sep 27, 1988·47 cites·24 claims
- 0388US4656750AHeading sensorSTANDARD TELEPHONES CABLES LTD·Filed 1985·Granted Apr 14, 1987·73 cites·15 claims
- 0482US4919099ACombustion monitoringLUCAS IND PLC·Filed 1988·Granted Apr 24, 1990·47 cites·14 claims
- 0577US4692703AMagnetic field sensor having a Hall effect device with overlapping flux concentratorsSTANDARD TELEPHONES CABLES LTD·Filed 1985·Granted Sep 8, 1987·39 cites·15 claims
- 0657US4696543AOptical fiber cable having a low permeability to hydrogenSTANDARD TELEPHONES CABLES LTD·Filed 1985·Granted Sep 29, 1987·18 cites·12 claims
- 0756US4665363AOptical fibre magnetic gradient detectorSTC PLC·Filed 1986·Granted May 12, 1987·16 cites·11 claims
- 0853US4668085APhoto-elastic sensorSTC PLC·Filed 1985·Granted May 26, 1987·12 cites·4 claims
- 0947US4697146ASpherical shell fibre optic magnetic field sensors and magnetometers and magnetic gradient detectors incorporating themSTC PLC·Filed 1986·Granted Sep 29, 1987·10 cites·8 claims
- 1041US4712065AMagnetic field sensors, in particular optical fiber magnetometersSTC PLC·Filed 1986·Granted Dec 8, 1987·7 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →