Inventor · disambiguated record
David Stryffeler
Also filed as: STRYFFELER DAVID
3 granted patents·6 citations·filing 2011–2018
58Inventor score
Technology areasE21C
Top patents by PatentIndex Score
3 records- 0177US9920624B2System and method of detecting dull and worn cutter bitsJOY MM DELAWARE INC·Filed 2016·Granted Mar 20, 2018·5 cites·24 claims
- 0251US8967728B2Method of controlling a miner to cause wobble in the cutting headsSTRYFFELER DAVID·Filed 2011·Granted Mar 3, 2015·1 cites·25 claims
- 0348US10227869B2System and method of detecting dull and worn cutter bitsJOY MM DELAWARE INC·Filed 2018·Granted Mar 12, 2019·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →