Home › Borgwarner › Roger T. Simpson

RS

Roger T. Simpson — 77 Patents

BOBorgwarner: 75 patents #2 of 1,733Top 1%

JSJacobs Vehicle Systems: 1 patents #43 of 73Top 60%

XCXcp: 1 patents #2 of 5Top 40%

Ithaca, NY: #6 of 1,653 inventorsTop 1%

New York: #917 of 115,490 inventorsTop 1%

Overall (All Time): #24,274 of 4,157,543Top 1%

77 Patents All Time

Roger T. Simpson has been granted 77 US patents while listed as an inventor at Borgwarner. The first was granted in 1985 and the most recent in June 2019. Roger T. Simpson ranks #24,274 of 4,157,543 US inventors in our database (top 0.58%). Patent records list Roger T. Simpson in Ithaca, NY, US.

Patents per Year

Issued Patents All Time

Showing 1–25 of 77 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10329969	System and method of adjusting actuation timing of valves in a piston engine	Jacob M. Moore, Alan Steines, John A. Schwoerer	2019-06-25
10138944	Electric phaser coupling method	Daniel Brown	2018-11-27	$14,634,000
10006321	Engine variable camshaft timing phaser with planetary gear set	Michael Close, Thomas Benner	2018-06-26	$6,573,000
9982572	Positional control of actuator shaft for e-phaser and method of calibration	—	2018-05-29	$15,004,000
9035510	Motor with torsional isolation means	—	2015-05-19	$31,936,000
8677849	Sprocket with damper and compensator	—	2014-03-25	$51,509,000
8562476	Manual transmission using chain and planetary gear set as final drive	Mark E. Michaels	2013-10-22	$11,814,000
8256393	Variable cam timing controls mounted in the camshaft	Roger P. Butterfield, Franklin R. Smith	2012-09-04	$25,204,000
8151746	Control system for a variable compression engine	—	2012-04-10	$64,694,000
7497297	On demand vehicle drive system	Will Watson, Alan L. Miller, Drew A. Sundquist, Dan J. Showalter	2009-03-03	$7,906,000
7255077	CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals	Franklin R. Smith, Marty Gardner	2007-08-14	$19,670,000
7225770	Electromagnetic actuator having inherently decelerating actuation between limits	—	2007-06-05	$24,531,000
7214153	Method of changing the duty cycle frequency of a PWM solenoid on a CAM phaser to increase compliance in a timing drive	—	2007-05-08	$12,075,000
7137371	Phaser with a single recirculation check valve and inlet valve	Marty Gardner	2006-11-21	$2,607,000
6997150	CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals	—	2006-02-14	$5,358,000
6990935	Pivoting lifter control system using spool valve and check valve to recirculate oil	—	2006-01-31	$15,984,000
6978749	Means to add torsional energy to a camshaft	—	2005-12-27	$17,596,000
6966288	Lock pin with centrifugally operated release valve	—	2005-11-22	$8,519,000
6932037	Variable CAM timing (VCT) system having modifications to increase CAM torsionals for engines having limited inherent torsionals	Philip J. Mott	2005-08-23	$9,177,000
6883475	Phaser mounted DPCS (differential pressure control system) to reduce axial length of the engine	—	2005-04-26	$1,948,000
6883479	VCT phaser having an electromagnetic lock system for shift and lock operation	—	2005-04-26	$1,948,000
6840202	Method to reduce noise of a cam phaser by controlling the position of center mounted spool valve	—	2005-01-11	$7,874,000
6814037	Variable camshaft timing for internal combustion engine with actuator locking	Franklin R. Smith, Marty Gardner, Braman Wing, Michael Duffield	2004-11-09	$2,796,000
6792902	Externally mounted DPCS (differential pressure control system) with position sensor control to reduce frictional and magnetic hysteresis	—	2004-09-21	$5,255,000
6779501	Method to reduce rotational oscillation of a vane style phaser with a center mounted spool valve	Franklin R. Smith	2004-08-24	$11,315,000