Inventor · disambiguated record
Ronald J. Fredricks
Also filed as: FREDRICKS RONALD J · FREDRICKS RONALD JOSEPH
8 granted patents·513 citations·filing 1981–2014
91Inventor score
Top patents by PatentIndex Score
8 records- 0196US5668675AOpto-electronic aid for alignment of exterior vehicle mirrors to minimize blind spot effectsFiled 1995·Granted Sep 16, 1997·230 cites·8 claims
- 0295US6890041B1Antilock brake systems employing a sliding mode observer based estimation of differential wheel torqueFiled 2002·Granted May 10, 2005·62 cites·28 claims
- 0392US10145243B2Planetary rotary engine with rotary ring valvesPLANETARY ROTOR ENGINE COMPANY·Filed 2014·Granted Dec 4, 2018·10 cites·20 claims
- 0492US6501536B1Method and apparatus for determining the location of an occupant of a vehicleFiled 2001·Granted Dec 31, 2002·76 cites·16 claims
- 0585US6176587B1Method and apparatus for adjusting vehicle mirrorsFiled 1999·Granted Jan 23, 2001·53 cites·22 claims
- 0683US7938494B2Antilock braking systems and methodsRIBBENS WILLIAM B·Filed 2007·Granted May 10, 2011·13 cites·25 claims
- 0775US5993015AMethod and apparatus for determining the location of an occupant of a vehicleFiled 1997·Granted Nov 30, 1999·42 cites·42 claims
- 0872US4456376AOptical rate sensorLEAR SIEGLER INC·Filed 1981·Granted Jun 26, 1984·27 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →