Assignee
ELKEM METALS
US25 patents
Top patents by PatentIndex Score
US4417007ANov 22, 1983
Zinc rich paint formulations employing manganomanganic oxide fume pigment
ELKEM METALS39 citations91
US4480064AOct 30, 1984
Color pigment for use in the production of thermoplastic articles
ELKEM METALS19 citations81
US4799955AJan 24, 1989
Soft composite metal powder and method to produce same
ELKEM METALS20 citations75
US4749549AJun 7, 1988
Gray cast iron inoculant
ELKEM METALS20 citations75
US4666516AMay 19, 1987
Gray cast iron inoculant
ELKEM METALS17 citations75
US4420340ADec 13, 1983
Color retention pigment for paint compositions using latex vehicles
ELKEM METALS18 citations72
US4417008ANov 22, 1983
Improved color pigment for solvent-base paint formulations
ELKEM METALS16 citations72
US4941914AJul 17, 1990
Desulfurization agent
ELKEM METALS13 citations71
US4592538AJun 3, 1986
Apparatus for producing predominately iron alloy containing magnesium
ELKEM METALS10 citations70
US4459154AJul 10, 1984
Alloy and process for producing and casting ductile and compacted graphite cast irons
ELKEM METALS13 citations70
US4545817AOct 8, 1985
Alloy useful for producing ductile and compacted graphite cast irons
ELKEM METALS16 citations69
US4509717AApr 9, 1985
Slide gate valve for dry bulk discharging containers
ELKEM METALS21 citations69
US4395285AJul 26, 1983
Low density compacts of prepared mix for use in the production of silicon and ferrosilicon
ELKEM METALS10 citations69
US4396428AAug 2, 1983
Processes for producing and casting ductile and compacted graphite cast irons
ELKEM METALS11 citations68
US4816230AMar 28, 1989
System for recycling fines to hollow electrode
ELKEM METALS7 citations66
US4491568AJan 1, 1985
System for recycling fines to hollow electrode
ELKEM METALS7 citations66
US4676970AJun 30, 1987
Method for producing metal sulfide and the product produced therefrom
ELKEM METALS12 citations62
US5149364ASep 22, 1992
Desulfurization agent
ELKEM METALS5 citations59
US5078784AJan 7, 1992
Desulfurization agent
ELKEM METALS3 citations59
US4519838AMay 28, 1985
Apparatus and process for producing predominately iron alloy containing magnesium
ELKEM METALS5 citations59
US4472197ASep 18, 1984
Alloy and process for producing ductile and compacted graphite cast irons
ELKEM METALS2 citations58
US5061672AOct 29, 1991
Active mass for making organohalosilanes
ELKEM METALS3 citations57
US4684403AAug 4, 1987
Dephosphorization process for manganese-containing alloys
ELKEM METALS3 citations57
US4752327AJun 21, 1988
Dephosphorization process for manganese alloys
ELKEM METALS4 citations56
US5362440ANov 8, 1994
Ferrophosphorus refining process
ELKEM METALS5 citations55