Inventor · disambiguated record
Joseph R. Derk
Also filed as: DERK JOSEPH R
2 granted patents·1 pending application·42 citations·filing 2006–2012
64Inventor score
Top patents by PatentIndex Score
3 records- 0188US7658124B2Compliant gear assembly and work machine using sameCATERPILLAR INC·Filed 2006·Granted Feb 9, 2010·25 cites·7 claims
- 0285US8225689B2Compliant gear assembly, engine and gear train operating methodBROSOWSKE THOMAS A·Filed 2009·Granted Jul 24, 2012·17 cites·16 claims
- 0343US2012266706A1Compliant Gear Assembly, Engine And Gear Train Operating MethodBROSOWSKE THOMAS A·Filed 2012·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →