Inventor · disambiguated record
Trent Randall Stefek
Also filed as: STEFEK TRENT R · STEFEK TRENT RANDALL
9 granted patents·5 pending applications·144 citations·filing 2007–2023
87Inventor score
Top patents by PatentIndex Score
14 records- 0195US7984575B2Quick coupler assemblyCATERPILLAR INC·Filed 2007·Granted Jul 26, 2011·58 cites·24 claims
- 0291US8684623B2Tool coupler having anti-release mechanismROBL TROY CURTIS·Filed 2012·Granted Apr 1, 2014·23 cites·8 claims
- 0388US9228314B2Quick coupler hydraulic control systemCATERPILLAR INC·Filed 2013·Granted Jan 5, 2016·14 cites·20 claims
- 0488US8281506B2Tool coupler assemblySTEFEK TRENT RANDALL·Filed 2010·Granted Oct 9, 2012·17 cites·18 claims
- 0587US9217235B2Tool coupler system having multiple pressure sourcesROBL TROY CURTIS·Filed 2012·Granted Dec 22, 2015·16 cites·12 claims
- 0686US8869437B2Quick couplerROBL TROY C·Filed 2012·Granted Oct 28, 2014·16 cites·15 claims
- 0768US12378747B2Universal hydraulic auxiliary depressurization circuitCATERPILLAR INC·Filed 2022·Granted Aug 5, 2025·0 cites·20 claims
- 0861US2025109571A1Down-force control in a work machine having articulating armsCATERPILLAR INC·Filed 2023·Application pending·0 cites
- 0957US12227916B2Quick coupler automatic locking mechanism and methodCATERPILLAR INC·Filed 2021·Granted Feb 18, 2025·0 cites·8 claims
- 1054US12209382B2Automated work tool depressurization circuit and methodCATERPILLAR INC·Filed 2022·Granted Jan 28, 2025·0 cites·20 claims
- 1145US2014212210A1Tool coupler having a modular frame constructionCATERPILLAR INC·Filed 2013·Application pending·0 cites
- 1245US2013008153A1Tool coupler assemblyCATERPILLAR INC·Filed 2012·Application pending·0 cites
- 1340US2014294497A1Locking system for quick couplerCATERPILLAR INC·Filed 2013·Application pending·0 cites
- 1434US2017121928A1Stick and coupler assemblyCATERPILLAR INC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →