LD

Larry M. Delfs

JD John Deere: 7 patents #667 of 5,518Top 15%
Overall (All Time): #765,894 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5394701 Brake valve with prefill chamber unloading valve Douglas M. Durant, Derek M. Eagles 1995-03-07
5245827 Supply valve arrangement for closed center hydraulic system Douglas M. Durant, Derek M. Eagles, Ronald Pratt 1993-09-21
D326709 Selective control valve used to operate implements attached to a tractor Douglas M. Durant, Cristian J. Felix, William E. Crookes 1992-06-02
4881573 Female hydraulic coupler with push-connect and lever disconnect Douglas M. Durant, Uwe H. Kugler, Bennie J. Vaughn, Douglas W. Nordquist 1989-11-21
4713936 Motor seal protector valve Dennis R. Barber, Ronnie Franklin Burk 1987-12-22
4696367 Auxiliary hydrostatic drive system 1987-09-29
4630526 Force control system including bypass flow path for implement with relatively movable frame parts Ronnie Franklin Burk, Michael Gilmore, Warren L. Thompson 1986-12-23