TS

Thomas L. Stiefvater

NA New Holland North America: 9 patents #14 of 281Top 5%
📍 Ephrata, PA: #14 of 139 inventorsTop 15%
🗺 Pennsylvania: #9,221 of 74,527 inventorsTop 15%
Overall (All Time): #586,817 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6776432 Drawbar adapter for pull-through swivel hitch Melanie W. Harkcom, Terry A. Young 2004-08-17
6497087 Crop conveying drums for a disc cutterbar Wilburn H. Potter 2002-12-24
6481192 Steering tube for pivotally rotating a hay harvester gearbox Melanie W. Harkcom, Steven J. Campbell, Edward J. Clement 2002-11-19
6360516 Two stage hydraulic tongue swing mechanism Melanie W. Harkcom, Steven J. Campbell, J. T. Clevenger, Jr., Terry A. Young 2002-03-26
6273449 Tongue latch mechanism Melanie W. Harkcom, Steven J. Campbell, Terry A. Young 2001-08-14
6199355 Control apparatus for rotatable gearbox on crop harvester J. T. Clevenger, Jr., Charles H. Hoffman, Larry Miller 2001-03-13
6044633 Control apparatus for rotatable gearbox on crop harvester James T. Clevenger, Jr., Larry Miller, Charles H. Hoffman 2000-04-04
5916112 Guide link for a rotatable harvester gearbox James T. Clevenger, Jr., Steven J. Campbell, Kenneth R. Underhill 1999-06-29
5551526 Modulated FWD clutch for tractor braking Steven C. Young, John H. Posselius 1996-09-03