Assignee
NORINCO
FR·10 granted patents·4 pending applications·144 citations·filing 1999–2011
Top patents by PatentIndex Score
14 records- 0178US7908798B2Device for closing a frame having a panel articulated on the frameNORINCO·Filed 2006·Granted Mar 22, 2011·9 cites·7 claims
- 0272US7303669B2Grate for closing a drain and similarNORINCO·Filed 2003·Granted Dec 4, 2007·25 cites·12 claims
- 0372US6997636B2Device for connecting a piece of road equipment, such as drain inlet, to a vertical fixed runoff drainage pipeNORINCO·Filed 2003·Granted Feb 14, 2006·40 cites·9 claims
- 0470US7320236B2Device that makes it possible to lock and unlock, by means of a key, a stopper or cover on a frameNORINCO·Filed 2005·Granted Jan 22, 2008·10 cites·9 claims
- 0569US7455474B2Device permitting a plug or a cover to lock in a detachable manner onto a frameNORINCO·Filed 2005·Granted Nov 25, 2008·16 cites·9 claims
- 0668US7908710B2Device for articulating a cover or lid to a frame in particular of a manholeNORINCO·Filed 2006·Granted Mar 22, 2011·6 cites·5 claims
- 0767US7770260B2Device for blocking an articulation axis in the housing of a crown member, such as a grid or a buffer, in a road portholeNORINCO·Filed 2007·Granted Aug 10, 2010·8 cites·9 claims
- 0864US7377141B2Device for locking and unlocking a cover or lid on a frame by means of a keyNORINCO·Filed 2005·Granted May 27, 2008·8 cites·11 claims
- 0948US2006284427A1Device for verification of locking or unlocking a lock that immobilizes a cover in and closing a frameNORINCO·Filed 2006·Application pending·0 cites
- 1047US7080954B2Ready-to-install road building apparatus and corresponding installation methodNORINCO·Filed 2002·Granted Jul 25, 2006·9 cites·15 claims
- 1145US6588810B1Closing device with selective lockingNORINCO·Filed 1999·Granted Jul 8, 2003·13 cites·14 claims
- 1235US2008022731A1Device for locking and unlocking by means of a wrench, a plug or lid on a frame, notably of a manholeNORINCO·Filed 2007·Application pending·0 cites
- 1333US2007144112A1Road-system fire stopNORINCO·Filed 2006·Application pending·0 cites
- 1428US2011222964A1Highway device, in particular manhole, with frame and plug with backward movement relative to the frame to ensure the closed position of the plug in the frameNORINCO·Filed 2011·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →