Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Tool member for a rotary drilling tool

Tool member for a rotary drilling tool

US Patent 4637659 · Granted Jan 20, 1987

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Device for drilling a bore in the ground2009
Method and device for driving bore-holes, especially in the sea bed, using a gui2002
Method and device for driving bore-holes, in the sea bed using a counterflush me2002
Drilling tool for the air-lifting process2002
Process and device for separation of pipes or columns fixed in the ground2001
Device for drilling a bore hole in the ground2000
Device for connecting a drill column to a pipe or the like1988
Holding device for boring head tools or the like1984
Apparatus for extracting cores1981