Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Highway device and covering element for such a device

Highway device and covering element for such a device

US Patent 6676332 · Granted Jan 13, 2004

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Closing device2011
Device for closing an opening, particularly a street manhole2011
Device for closing an opening, particularly a street manhole2011
Device for closing an opening, particularly a man hole2008
Device for closing an opening, particularly a man hole2008
Device for mutually locking two elements, in particular a covering element to an2004
Road network device with articulated cover2004
Ball and socket joint for the waterproof assembly of two pipe elements2000
Manhole assembly with T-shaped hinge1989
Manhole cover sealing and locking arrangement1988
Wedge member for assembling tunnel shield voussoirs1986
Manhole1985