Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Pipe plug and centering construction for centering ridged key in mating groove in pipe plug or nut

Pipe plug and centering construction for centering ridged key in mating groove in pipe plug or nut

US Patent 5062325 · Granted Nov 5, 1991

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Compartmentalized shipping container for temperature control material distributi2024
Compartmentalized shipping container for temperature control material distributi2022
Vessel assemblies for temperature control2022
Security lock for storage tanks2016
Corrosion-resistant self-locking manhole cover2015
Manhole security cover2015
Corrosion-resistant self-locking manhole cover2015
Corrosion-resistant self-locking manhole cover2014
Manhole security cover2014
Quick-release ring-type meter lock with keyless reset2011
Self-locking manhole cover2011
Security key tool for manhole access opening security device2010