Inventor · disambiguated record
Robert D. Lancaster
Also filed as: LANCASTER ROBERT D
4 granted patents·124 citations·filing 1979–1995
79Inventor score
Top patents by PatentIndex Score
4 records- 0179US4735229AWear monitoring construction for erosive/corrosive flow conducting devicesVARCO BEST FLOW PRODUCTS·Filed 1987·Granted Apr 5, 1988·44 cites·10 claims
- 0278US5706856AValve apparatusFiled 1995·Granted Jan 13, 1998·53 cites·25 claims
- 0346US4215458AExtractor toolLANCASTER ROBERT D·Filed 1979·Granted Aug 5, 1980·10 cites·15 claims
- 0444US4470430ADrilling chokeLANCASTER ROBERT D·Filed 1981·Granted Sep 11, 1984·17 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →