SETAN
Filed: July 11, 1989
LIGNOSULFANATE FOR USE AS A DEFLOCCULANT AND CLAY PARTICLE PROTECTION AGENT IN THE OIL WELL INDUSTRY
Owned by: SETAC CORPORATION
Serial Number: 73811970
E.L.S.
Filed: November 30, 1994
lignosulfonate additive for drilling fluids in the oil and gas industries
Owned by: SETAC CORPORATION
Serial Number: 74604556
SETAC
Filed: July 3, 1995
industrial chemicals for the oil and gas drilling industry, namely lignosulfonate additives for drilling fluids, powder…
Owned by: SETAC CORPORATION
Serial Number: 74696794
BOREMASTER
Filed: August 12, 2002
Chemical additive in powder form for controlling the filtrate loss for water base drilling fluid used to drill oil and gas…
Owned by: SETAC CORPORATION
Serial Number: 76440111
DRILLFAST
Filed: September 13, 2002
Drilling mud fluid additive, namely, a liquid additive to an oil and gas subterranean well drilling fluid to improve lubrication…
Owned by: SETAC CORPORATION
Serial Number: 76451037
SETAC
Chemical additives for oil well drilling fluid
Owned by: SETAC CORPORATION
Serial Number: 77633410
