22 Utility Patents
#1 in Hem
#1,873 in France
#147,832 in the World
Forward Citations = 45
Company Filing History:
Norsolor
Societe Chimique Des Charbonnages S.a.
Sollac
4. 1 out of 5,054

5. 1 out of 32

where one patent can have more than one assignee
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