DS

David Stryffeler

JD Joy Mm Delaware: 2 patents #39 of 162Top 25%
JM Joy Global Underground Mining: 1 patents #59 of 130Top 50%
Overall (All Time): #1,464,478 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10227869 System and method of detecting dull and worn cutter bits Edward L. Doheny, II, Ben Snyman, Anthony Reid, Hekkie van Dyk 2019-03-12
9920624 System and method of detecting dull and worn cutter bits Edward L. Doheny, II, Ben Snyman, Anthony Reid, Hekkie van Dyk 2018-03-20
8967728 Method of controlling a miner to cause wobble in the cutting heads Don McDaniel, Chris McCormick 2015-03-03