Inventor · disambiguated record
Robert A. Lapke
Also filed as: LAPKE ROBERT A
6 granted patents·179 citations·filing 1975–2004
86Inventor score
Top patents by PatentIndex Score
6 records- 0175US6094617AEngine power monitoring systemCATERPILLAR INC·Filed 1998·Granted Jul 25, 2000·35 cites·18 claims
- 0274US6240356B1Work machine speed control system to manage engine overspeed and brake energyCATERPILLAR INC·Filed 1998·Granted May 29, 2001·60 cites·17 claims
- 0367US5799950ALubricated joint with equalizing pressure zoneCATERPILLAR INC·Filed 1996·Granted Sep 1, 1998·25 cites·8 claims
- 0465US5782269ASoft seal poppet type check valveCATERPILLAR INC·Filed 1997·Granted Jul 21, 1998·30 cites·10 claims
- 0564US7870932B2Retractable access system ladder and work machine using sameCATERPILLAR INC·Filed 2004·Granted Jan 18, 2011·16 cites·19 claims
- 0649US4026197AOil cooled piston ringsCATERPILLAR TRACTOR CO·Filed 1975·Granted May 31, 1977·13 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →