SC

Steven J. Campbell

NA New Holland North America: 12 patents #8 of 281Top 3%
SP Sperry: 3 patents #125 of 841Top 15%
📍 New Holland, PA: #25 of 177 inventorsTop 15%
🗺 Pennsylvania: #4,940 of 74,527 inventorsTop 7%
Overall (All Time): #327,840 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
6481192 Steering tube for pivotally rotating a hay harvester gearbox Melanie W. Harkcom, Thomas L. Stiefvater, Edward J. Clement 2002-11-19
6360516 Two stage hydraulic tongue swing mechanism Melanie W. Harkcom, J. T. Clevenger, Jr., Thomas L. Stiefvater, Terry A. Young 2002-03-26
6273449 Tongue latch mechanism Melanie W. Harkcom, Thomas L. Stiefvater, Terry A. Young 2001-08-14
6116009 Curved draft tongue for mower conditioners Kenneth W. McLean 2000-09-12
6023923 Drive shaft support for mower conditioners Kenneth W. McLean 2000-02-15
5996323 Modular disc cutterbar for agricultural implements Kenneth W. McLean 1999-12-07
5953893 Disc mower cutterbar guard Barry E. Smith, Darryl T. Leeds 1999-09-21
5916112 Guide link for a rotatable harvester gearbox Thomas L. Stiefvater, James T. Clevenger, Jr., Kenneth R. Underhill 1999-06-29
5875619 Oil slinger for cutter module drive assembly Kenneth W. McLean, William T. Fry 1999-03-02
5809757 Protective structure for a modular disc cutterbar Kenneth W. McLean, M. Luke Nolt 1998-09-22
5784866 Disc cutterbar for agricultural implements Kenneth W. McLean 1998-07-28
5778647 Disc mower conditioner Kenneth W. McLean 1998-07-14
4505279 Staggered spiral rasp bar segments for axial flow combines Keith A. Stickley, David R. Klingensmith 1985-03-19
4306572 Axial flow stripper plate Marc Christenson, Edward A. Relf 1981-12-22
4250896 Anti-wrap means Robert A. Wagstaff, Mark L. Cozine, Marc Christenson, Ray E. Nooyen 1981-02-17