Assignee
EJ USA INC
US·8 granted patents·2 pending applications·57 citations·filing 2012–2022
Top patents by PatentIndex Score
10 records- 0194US8784000B2Explosion mitigating coverEJ USA INC·Filed 2013·Granted Jul 22, 2014·16 cites·20 claims
- 0291US8714867B1Explosion mitigating coverEJ USA INC·Filed 2012·Granted May 6, 2014·14 cites·20 claims
- 0390US8727659B1Manhole cover with insertEJ USA INC·Filed 2013·Granted May 20, 2014·11 cites·10 claims
- 0482US9004810B2Explosion mitigating coverEJ USA INC·Filed 2014·Granted Apr 14, 2015·5 cites·20 claims
- 0581US9340948B2Explosion mitigating vaultEJ USA INC·Filed 2014·Granted May 17, 2016·6 cites·20 claims
- 0665US10851515B2Skirt for forming an access hatch in concreteEJ USA INC·Filed 2016·Granted Dec 1, 2020·2 cites·16 claims
- 0757US9290916B2Removable fire hydrant nozzle with improved locking structureEJ USA INC·Filed 2014·Granted Mar 22, 2016·2 cites·24 claims
- 0848US2024191455A1Manhole lock systemEJ USA INC·Filed 2022·Application pending·0 cites
- 0945US2014250794A1Floating manhole frame assemblyEJ USA INC·Filed 2013·Application pending·0 cites
- 1032USD732944SSecurity boltEJ USA INC·Filed 2013·Granted Jun 30, 2015·1 cites·1 claims
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