Inventor · disambiguated record
Ronald J. Lievens
Also filed as: LIEVENS RONALD J
5 granted patents·66 citations·filing 1974–2002
80Inventor score
Top patents by PatentIndex Score
5 records- 0173US3969805AMethod of constructing an axial flow fanTRANE CO·Filed 1974·Granted Jul 20, 1976·26 cites·7 claims
- 0264US6945758B1Drive support and cover assembly for tubeaxial fanEMERSON ELECTRIC CO·Filed 2002·Granted Sep 20, 2005·15 cites·24 claims
- 0351US6702548B1Tubeaxial fan assemblyEMERSON ELECTRIC CO·Filed 2002·Granted Mar 9, 2004·7 cites·22 claims
- 0442US4830274APressure independent VAV valve with pressure dependent backupAMERICAN STANDARD INC·Filed 1988·Granted May 16, 1989·11 cites·15 claims
- 0541US6722849B1Propeller for tubeaxial fanEMERSON ELECTRIC CO·Filed 2002·Granted Apr 20, 2004·7 cites·20 claims
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