A DRILLING FLUID CONTAINING A SURFACTANT HAVING A HIGH BOILING POINT AND A LONG CHAIN TAIL GROUP AND A METHOD OF USING THE FLUID
- Application ID: EP12818747
- Status: █ APPLICATION WITHDRAWN
This EP application has the IPC class B01 (PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL) and C09 (DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR). There is no patent agent firm in the market, which is specialized in this combination of IPC classes.