Inventor · disambiguated record
Charles E. Lancaster
Also filed as: LANCASTER CHARLES E
3 granted patents·1 pending application·169 citations·filing 1983–2014
76Inventor score
Top patents by PatentIndex Score
4 records- 0192US5009265APacker for wellhead repair unitDRILEX SYST INC·Filed 1989·Granted Apr 23, 1991·123 cites·24 claims
- 0266US4541481AAnnular electrical contact apparatus for use in drill stem testingSCHLUMBERGER TECHNOLOGY CORP·Filed 1983·Granted Sep 17, 1985·24 cites·7 claims
- 0341US4699126AMethods and apparatus for massaging the spinal area and adjacent musclesLANCASTER CHARLES E·Filed 1986·Granted Oct 13, 1987·22 cites·6 claims
- 0439US2015007994A1Open Hole Casing Run Perforating ToolLANCASTER CHARLES E·Filed 2014·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →