Marcel R. Lefevre

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Branchburg, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Support means for transverse fill for cooling towers
- Patent number 4,451,411
- Issue date May 29, 1984
- Research-Cottrell
- Marcel R. Lefevre
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Filling sheet attaching means for gas and liquid contact apparatus...
- Patent number 4,395,448
- Issue date Jul 26, 1983
- Research-Cottrell, Inc.
- Marcel R. Lefevre
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Apparatus for reducing the detrimental wind influence on cooling to...
- Patent number 4,278,620
- Issue date Jul 14, 1981
- Research-Cottrell, Inc.
- Marcel R. Lefevre
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Modular gas and liquid contact means
- Patent number 4,052,491
- Issue date Oct 4, 1977
- Research-Cottrell, Inc.
- Marcel Robert Lefevre
- F28 - HEAT EXCHANGE IN GENERAL