JF

John R. Frederick

JD Joy Mm Delaware: 5 patents #12 of 162Top 8%
CC Cluett, Peabody & Co.: 1 patents #4 of 14Top 30%
JM Joy Global Underground Mining: 1 patents #59 of 130Top 50%
Overall (All Time): #634,208 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10677054 Cutting bit assembly Randy W. Arnold, James E. Folkerts, John Hallberg, James Krellner, David Meade +7 more 2020-06-09
9874095 Cutting bit and extraction tool for same Rudie Boshoff 2018-01-23
6497536 Roof support arrangement for mining apparatus and roof bolting equipment Brad Neilson 2002-12-24
6364148 Storage pod for underground mining machine Brad Neilson 2002-04-02
6325460 Machine used in connection with underground mining having an operator protective shield 2001-12-04
6224164 Mining machine with detachable articulated cutting assembly Kevin R. Hall, Gregory S. Wilson 2001-05-01
5308196 Yieldable confined core mine roof support 1994-05-03
4446606 Continuous compressive preshrinking and drying method Jackson Lawrence, Harry A. Webb 1984-05-08