Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Fluid loss control additives for oil-based well-working fluids

Fluid loss control additives for oil-based well-working fluids

US Patent 4671883 · Granted Jun 9, 1987

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Softening agents1999
Method for the treatment of wool1997
Polymers and prepolymers and their use in a method for the treatment of wool1996
Method for the treatment of cellulosic fibres with amino functional and silicone1995
Polymers and prepolymers and their use in a method for the treatment of wool1995
Granulation process for making granular bleach activator compositions and result1995
Method for the treatment of wool1992
Bleach activator compositions1990
Triazinylaminobenzaldehydes1988
Organic compounds1985
Bleach composition1983