Inventor · disambiguated record
Charles Defrancq
Also filed as: DEFRANCQ CHARLES · DEFRANCQ CHARLES-EMILE-J
3 granted patents·18 citations·filing 1975–1986
67Inventor score
Top patents by PatentIndex Score
3 records- 0159US3997338AGray cast ironSCIENT ET TECH DE L IND DES FA·Filed 1975·Granted Dec 14, 1976·8 cites·18 claims
- 0245US4644995ADevice for fabricating frozen moulding moulds or coresAIR LIQUIDE·Filed 1985·Granted Feb 24, 1987·6 cites·13 claims
- 0332US4723763ADevice for continuous injection under low pressure of a powdered additive into a stream of molten metalPECHINEY ELECTROMETALLURGIE·Filed 1986·Granted Feb 9, 1988·4 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →