Since the 1960s, Orthman has brought innovation after innovation to farming. Seeing the trend toward larger and larger equipment, Orthman perfected and patented an internal folding toolbar in the 1970s, then used its expertise in toolbar design to invent the stack-fold toolbar in the 1990s that allowed planter boxes to remain upright during transport. Orthman’s reinvention of the disc stabilizer in 1978 ultimately led to the development of the GPS Tracker® IV, the industry's only ground-engaging implement-steering system.