Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Guide roller assembly

Guide roller assembly

US Patent 4244628 · Granted Jan 13, 1981

Estimated economic value: $15,955,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Tensioner recoil control apparatus1988
Speed control valve1988
Crown block compensator1987
Crown block compensator1986
Position indicator for drill string compensator1984
Motion compensator system1984
Motion compensator with improved position indicator1983
Underwater wellhead connector1983