Inventor · disambiguated record
Roger John Hazelden
Also filed as: HAZELDEN ROGER · HAZELDEN ROGER J · HAZELDEN ROGER JOHN
17 granted patents·263 citations·filing 1986–2019
94Inventor score
Top patents by PatentIndex Score
17 records- 0188US4774494APosition encoder employing three or more colorsLUCAS IND PLC·Filed 1986·Granted Sep 27, 1988·47 cites·24 claims
- 0287US5369583AOptical torque sensors and steering systems for vehicles incorporating themLUCAS IND PLC·Filed 1993·Granted Nov 29, 1994·59 cites·16 claims
- 0385US8903121B2Rain detection apparatus and methodHEENAN ADAM JOHN·Filed 2012·Granted Dec 2, 2014·5 cites·6 claims
- 0483US8861780B2Rain detection apparatus and methodHEENAN ADAM JOHN·Filed 2012·Granted Oct 14, 2014·4 cites·8 claims
- 0583US7114373B2Fluid monitoringTRW LTD·Filed 2005·Granted Oct 3, 2006·16 cites·8 claims
- 0682US4919099ACombustion monitoringLUCAS IND PLC·Filed 1988·Granted Apr 24, 1990·47 cites·14 claims
- 0774US8180099B2Rain detection apparatus and methodHEENAN ADAM JOHN·Filed 2005·Granted May 15, 2012·5 cites·28 claims
- 0872US5636137AOptical torque sensor incorporating sensor failure diagnosticsLUCAS IND PLC·Filed 1994·Granted Jun 3, 1997·31 cites·19 claims
- 0963US8415960B2Capacitance sensing apparatusHAZELDEN ROGER JOHN·Filed 2007·Granted Apr 9, 2013·4 cites·13 claims
- 1063US4995480AVehicle brakeLUCAS IND PLC·Filed 1990·Granted Feb 26, 1991·18 cites·11 claims
- 1154US8781155B2Rain detection apparatus and methodHEENAN ADAM JOHN·Filed 2012·Granted Jul 15, 2014·0 cites·12 claims
- 1252US11662460B2Detecting misalignmentZF AUTOMOTIVE UK LTD·Filed 2018·Granted May 30, 2023·0 cites·19 claims
- 1350US5473156AOptical displacement sensor using dual reference reflectorsLUCAS IND PLC·Filed 1994·Granted Dec 5, 1995·13 cites·10 claims
- 1449US9485020B2Remote sensing device and monitoring apparatusTRW LTD·Filed 2013·Granted Nov 1, 2016·0 cites·22 claims
- 1542US5531127AOptical torque sensorLUCAS IND PLC·Filed 1994·Granted Jul 2, 1996·10 cites·11 claims
- 1640US11860309B23D imaging system and method of 3D imagingTRW LTD·Filed 2019·Granted Jan 2, 2024·0 cites·14 claims
- 1740US9008871B2Aircraft landing gear monitoring apparatusJONES IAN JAMES·Filed 2008·Granted Apr 14, 2015·4 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →