Inventor · disambiguated record
Philip C. Lewellen
Also filed as: DURANLEAU ROGER G · LEWELLEN PHILIP C
5 granted patents·76 citations·filing 1978–1996
80Inventor score
Top patents by PatentIndex Score
5 records- 0172US4657499AScrew extruder apparatus adapted for mixing additive fluidsSHELL OIL CO·Filed 1985·Granted Apr 14, 1987·34 cites·20 claims
- 0264US4659230AMixing element for compounds and extruding machinerySHELL OIL CO·Filed 1985·Granted Apr 21, 1987·24 cites·4 claims
- 0346US4211673ACatalytic metal-rare earth metal hydride for reduction of carbon monoxide in hydrogenTEXACO INC·Filed 1978·Granted Jul 8, 1980·2 cites·2 claims
- 0437US5658503ADual phase distribution deviceSHELL OIL CO·Filed 1996·Granted Aug 19, 1997·13 cites·8 claims
- 0532US5632865AMethod for introduction of aggressive liquid additivesSHELL OIL CO·Filed 1994·Granted May 27, 1997·3 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →