Inventor · disambiguated record
David F. Schaefer
Also filed as: SCHAEFER DAVID F · SCHAEFER DAVID FRANCIS
3 granted patents·43 citations·filing 2006–2017
68Inventor score
Technology areasB62D
Top patents by PatentIndex Score
3 records- 0188US7806209B2Apparatus and method to reduce vibrations on a tracked work machineCATERPILLAR INC·Filed 2006·Granted Oct 5, 2010·34 cites·15 claims
- 0258US8070240B2Sprocketed drive assembly for track-type machineZHENG JIANPING·Filed 2008·Granted Dec 6, 2011·8 cites·20 claims
- 0349US10351186B1Undercarriage support for a track chainCATERPILLAR INC·Filed 2017·Granted Jul 16, 2019·1 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →