FOUNDRISIL
Filed: May 21, 1984
UNWROUGHT AND PARTLY WROUGHT METALS AND THEIR ALLOYS COMPRISING CRUSHED GRANULAR CALCIUM-BARIUM FERROSILICON ALLOYS FOR…
Owned by: ELKEM ASA
Serial Number: 73481152
MICROBLOCK
Filed: May 22, 1989
CHEMICAL ADDITIVES FOR OIL WELL CEMENT SLURRIES
Owned by: ELKEM ASA
Serial Number: 73802005
ELKEM MICROSILICA
Filed: February 10, 1999
Silicon dioxide precipitated from smoke from electric smelting furnaces producing silicon metal or silicon alloys and chemicals…
Owned by: ELKEM ASA
Serial Number: 75638891
ELKEM SOLAR SILICON
Silicon for industrial purposes, in particular high purity silicon for solar cells
Owned by: Elkem Solar As
Serial Number: 85462690
MICRODENSE
Filed: March 18, 2013
Chemical additives for use in oil well fluids and oil well cements
Owned by: ELKEM ASA
Serial Number: 85879186
COMPACTMAG
Filed: November 19, 2013
Additive alloys for iron and steel
Owned by: ELKEM ASA
Serial Number: 86122856