Spersene Trademarks

SPERSENE
Petroleum Industry Chemicals, namely a drilling fluid additive for use in the oil and gas well drilling industry
Cancelled  ·  March 21, 2000  ·  76006262  · 
spersene
SPERSENE
ORGANIC DISPERSANT FOR DRILLING MUDS USED IN DRILLING OIL WELLS
Cancelled  ·  March 13, 1959  ·  72069537  · 
spersene
SPERSENE CF
CHEMICAL ADDITIVE FOR DRILLING FLUIDS USED IN OIL AND GAS WELL DRILLING OPERATIONS
Cancelled  ·  October 30, 1986  ·  73627828  ·