R. Keith Martin — 14 Patents at Borgwarner

R. Keith Martin has been granted 14 US patents while listed as an inventor at Borgwarner. The first was granted in 2001 and the most recent in January 2023. R. Keith Martin ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list R. Keith Martin in Marlette, MI, US.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
11541861	Transmission system for use in a vehicle	Joel M. Maguire, Christopher A. Spangler, Keith D. Van Maanen, Thomas Foster, Mark Buchanan	2023-01-03	$22,548,000
11473650	Method of operating a shifting system for a vehicle transmission	Xinqian Xiang	2022-10-18	$18,007,000
11326651	Shifting system including a shifting assembly and method of operating the same	Xinqian Xiang, Calahan B. Campton	2022-05-10	$11,733,000
11215242	Shifting system for vehicle transmission and method of operating the same	Calahan B. Campton	2022-01-04	$30,578,000
10473170	Centrifugally disengaging multi-mode clutch module	Calahan B. Campton, John F. Guzdek	2019-11-12	$13,657,000
9728314	Latching solenoid regulator valve	Jeffrey J. Waterstredt	2017-08-08	$7,559,000
8342051	DCT transmission utilizing a two axis chain	Larry A. Pritchard, Matthew Rahaim	2013-01-01
7101306	Bi-directional four-mode clutch for providing low and reverse gear ratios in a transmission	Christopher E. Blair, John M. Kremer, Melissa Koenig, Brian K. Stefina	2006-09-05	$4,892,000
6832674	Bi-directional four-mode clutch	Christopher E. Blair, John M. Kremer, Melissa Koenig, Brian K. Stefina	2004-12-21	$7,202,000
6830531	Control strategy for load sharing between a friction clutch and one-way clutch to effect low and reverse gear ratios in a transmission	Melissa Koenig, John M. Kremer	2004-12-14	$7,073,000
6647816	Electrically actuated synchronizer for a vehicle transmission	William J. Vukovich, Melissa Koenig	2003-11-18	$5,264,000
6543596	Multi-disk friction device having low-drag characteristics	John M. Kremer	2003-04-08	$2,004,000
6244407	Multi-disk friction device having forced lubrication on demand	John M. Kremer, Graham M. Annear, William J. Zdeblick	2001-06-12	$3,044,000
6189669	Multi-disk friction device having forced lubrication on demand	John M. Kremer, Paul T. McCrary	2001-02-20	$10,001,000

R. Keith Martin — 14 Patents

Issued Patents All Time

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