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73105643 08 Nov 1976 | on 18 May 1998 | WELLBORE FLUID ADDITIVES, PRINCIPALLY THOSE USED FOR VISCOSITY CONTROL... Class 001 Class 001 Chemical Products WELLBORE FLUID ADDITIVES, PRINCIPALLY THOSE USED FOR VISCOSITY CONTROL | | | KIM-MUD BRINADD COMPANY
73105644 08 Nov 1976 | on 02 Mar 1998 | WELLBORE FLUID ADDITIVES, PRINCIPALLY THOSE USED FOR VISCOSITY AND FLU... Class 001 Class 001 Chemical Products WELLBORE FLUID ADDITIVES, PRINCIPALLY THOSE USED FOR VISCOSITY AND FLUID LOSS CONTROL | | | THIX BRINADD COMPANY
73058586 24 Jul 1975 | on 25 Nov 1996 | WELLBORE FLUID ADDITIVES,WELLBORE FLUID ADDITIVES Class 001 Class 001 Chemical Products THICK | | | BRINADD BRINADD COMPANY
73005376 02 Nov 1973 | on 21 Aug 1995 | WELLBORE FLUID ADDITIVES USED TO PREVENT LOST CIRCULATION AND TO CONTR... Class 001 Class 001 Chemical Products WELLBORE FLUID ADDITIVES USED TO PREVENT LOST CIRCULATION AND TO CONTROL FLUID LOSS, VISCOSITY, DENSITY AND OTHER PROPERTIES OF WELLBORE FLUIDS | | | SLUGHEAL BRINADD COMPANY
73005257 01 Nov 1973 | on 14 Aug 1995 | WELLBORE FLUID ADDITIVES USED TO PREVENT LOST CIRCULATION AND TO CONTR... Class 001 Class 001 Chemical Products WELLBORE FLUID ADDITIVES USED TO PREVENT LOST CIRCULATION AND TO CONTROL THE VISCOSITY AND FLUID LOSS PROPERTIES OF WELLBORE FLUIDS | | | BRINADD BRINADD COMPANY
73090553 16 Jun 1976 | on 14 Aug 1984 | SERVICES TO THOSE CONCERNED WITH WELLBORE FLUIDS, PRINCIPALLY TO STUDY... Class 042 Class 042 Computer & Software Services & Scientific Services SERVICES TO THOSE CONCERNED WITH WELLBORE FLUIDS, PRINCIPALLY TO STUDY THE PROBLEMS ENCOUNTERED IN DRILLING AND WORKING WELLS AND TO RECOMMEND ADDITIVES FOR WELLBORE FLUIDS TO PREVENT LOST CIRCULATION AND TO CONTROL SUCH PROPERTIES AS VISCOSITY, DENSITY AND THIXOTHROPY OF SUCH FLUIDS | |