Patent classifications
C
CHEMISTRY; METALLURGY
Load children
C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
Load children
C09K
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
Load children
8/00
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
Load children Filter patents View analytics View as hierarchy
C09K8/42
Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
Load children Filter patents View analytics View as hierarchy
C09K8/424
using "spacer" compositions
Filter patents View analytics View as hierarchy