Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Positive latch core barrel apparatus

Positive latch core barrel apparatus

US Patent 6089335 · Granted Jul 18, 2000

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

High-speed triple string drilling system2014
Sonic latch mechanism2014
Isolation system for drilling systems2013
Methods of preloading a sonic drill head and methods of drilling using the same2013
Core barrel sonic latch mechanism and methods of sonic drilling using the same2012
Vibratory milling machine having linear reciprocating motion2011
Vibratory machine2011
Sonic drill head2011
Dual string orbital drilling system2011
Continuous vibratory milling machine2010
Vibratory milling machine having linear reciprocating motion2008
Bore hole grouting apparatus and method2002