• All sections
• E - Fixed constructions
• E21B - Earth or rock drillingobtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
• E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions

Patent holdings for IPC class E21B 44/00

Total number of patents in this class: 4903

10-year publication summary

Principal owners for this class