Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Safety closure member

Safety closure member

US Patent 4693278 · Granted Sep 15, 1987

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Machine-actuated and removable safety closure with anti-rotation and machine-rel2015
Verifiable closing and locking system of a cylindrical passageway2011
Cam-assisted, wedge actuated, metal-to-metal seal, block and bleed plugging tool2007
Removable threaded plug2000
Device for plugging the interior of a pipe1996