ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C09K0008536000 characterised by their form or by the form of their components, e.g. encapsulated material 1
C09K0008540000 Compositions for ; in situ inhibition of corrosion in boreholes or wells 1
C09K0008560000 Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof 1
C09K0008565000 Oil-based compositions 1
C09K0008570000 Compositions based on water or polar solvents (C09K0008565000 takes precedence);; 1
C09K0008575000 containing organic compounds 1
C09K0008580000 Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids 1
C09K0008582000 characterised by the use of bacteria 1
C09K0008584000 characterised by the use of specific surfactants 1
C09K0008588000 characterised by the use of specific polymers 1
C09K0008592000 Compositions used in combination with generated heat, e.g. by steam injection 1
C09K0008594000 Compositions used in combination with injected gas (C09K0008592000 takes precedence);; 1
C09K0008600000 Compositions for stimulating production by acting on the underground formation 1
C09K0008620000 Compositions for forming crevices or fractures 1
C09K0008640000 Oil-based compositions 1