Ronald J. Fredricks — 8 Patents at Lear Siegler

Ronald J. Fredricks has been granted 8 US patents while listed as an inventor at Lear Siegler. The first was granted in 1984 and the most recent in December 2018. Ronald J. Fredricks ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Ronald J. Fredricks in Jenison, MI, US.

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Showing 1–8 of 8 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10145243	Planetary rotary engine with rotary ring valves	William B. Ribbens	2018-12-04
7938494	Antilock braking systems and methods	William B. Ribbens	2011-05-10
6890041	Antilock brake systems employing a sliding mode observer based estimation of differential wheel torque	William B. Ribbens	2005-05-10
6501536	Method and apparatus for determining the location of an occupant of a vehicle	—	2002-12-31
6176587	Method and apparatus for adjusting vehicle mirrors	—	2001-01-23
5993015	Method and apparatus for determining the location of an occupant of a vehicle	—	1999-11-30
5668675	Opto-electronic aid for alignment of exterior vehicle mirrors to minimize blind spot effects	—	1997-09-16
4456376	Optical rate sensor	Wilbur A. Carrington, Harry L. Gubbins, Gordon P. Eckley, Thomas E. Perfitt, Jerry L. Page	1984-06-26	$3,777,000

Ronald J. Fredricks — 8 Patents

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