MD

Michael Duffield

BO Borgwarner: 2 patents #13 of 93Top 15%
📍 St. Augustine, FL: #3 of 19 inventorsTop 20%
🗺 Florida: #413 of 3,935 inventorsTop 15%
Overall (2004): #49,959 of 270,089Top 20%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6814037 Variable camshaft timing for internal combustion engine with actuator locking Franklin R. Smith, Roger T. Simpson, Marty Gardner, Braman Wing 2004-11-09
6763791 Cam phaser for engines having two check valves in rotor between chambers and spool valve Marty Gardner 2004-07-20