Michael Duffield — 15 Patents at Borgwarner

Michael Duffield has been granted 15 US patents while listed as an inventor at Borgwarner. The first was granted in 1999 and the most recent in April 2020. Michael Duffield ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Michael Duffield in St. Augustine, FL, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10615397	Battery design with bussing integral to battery assembly	Daniel E. Kelley, Gerard Rigobert, Alexandre BEUGNON	2020-04-07
10096813	Battery design with bussing integral to battery assembly	Daniel E. Kelley, Gerard Rigobert, Alexandre BEUGNON	2018-10-09
9406918	Support feature for joining of battery cell tabs	Stuart D. Barter, William L. Martz, Benjamin D. Kaufman	2016-08-02	$6,967,000
9065158	Corrugated fin and frame assembly for battery cooling	William L. Martz, Megan J. Quick, Stuart D. Barter, Glenn W. Skala, Steven J. Fogarassy +2 more	2015-06-23	$13,202,000
8673480	Support feature for joining of battery cell tabs	Stuart D. Barter, William L. Martz, Benjamin D. Kaufman	2014-03-18	$7,239,000
8574740	Molded frame with corrugated cooling fin for air-cooled battery	Megan J. Quick, Derek R. Weber, Thaddeus J. Grey	2013-11-05	$9,219,000
8221936	Method and apparatus for attachment of fuel cell stack manifold	Donald H. Keskula	2012-07-17	$7,175,000
6883481	Torsional assisted multi-position cam indexer having controls located in rotor	Marty Gardner	2005-04-26	$1,948,000
6814037	Variable camshaft timing for internal combustion engine with actuator locking	Franklin R. Smith, Roger T. Simpson, Marty Gardner, Braman Wing	2004-11-09	$2,796,000
6763791	Cam phaser for engines having two check valves in rotor between chambers and spool valve	Marty Gardner	2004-07-20	$10,098,000
6612952	Blade tensioner having spring blade cantilevered from distal end of arm	Roger T. Simpson	2003-09-02	$12,697,000
6374787	Multi-position variable camshaft timing system actuated by engine oil pressure	Roger T. Simpson, Marty Gardner	2002-04-23	$4,030,000
6311655	Multi-position variable cam timing system having a vane-mounted locking-piston device	Roger T. Simpson, Marty Gardner	2001-11-06	$4,313,000
6247434	Multi-position variable camshaft timing system actuated by engine oil	Roger T. Simpson, Marty Gardner	2001-06-19	$9,503,000
5967921	Hydraulic chain tensioner with molded plastic body	Roger T. Simpson, Todd K. Preston	1999-10-19	$2,488,000

Michael Duffield — 15 Patents

Issued Patents All Time

Patent Widget