HUGHES DRILLING FLUIDS Trademarks
KLAY-THIN
Filed: January 15, 1987
POLYMERIC THINNER USED IN A WELL DRILLING FLUID
Owned by: HUGHES DRILLING FLUIDS
Serial Number: 73640002
KLAY-PAC
Filed: January 15, 1987
POLYANIONIC CELLULOSE USED IN A WELL DRILLING FLUID
Owned by: HUGHES DRILLING FLUIDS
Serial Number: 73640003
KLAY-KOTE
Filed: January 15, 1987
SHALE STABILIZER AND VISCOSIFIER FOR A WELL DRILLING FLUID
Owned by: HUGHES DRILLING FLUIDS
Serial Number: 73640004
