Assignee
NANJING CHANGRONG ACOUSTIC INC
CN·3 granted patents·0 citations·filing 2015–2015
Top patents by PatentIndex Score
3 records- 0135US10026390B2Sound absorption plate with unit structureNANJING CHANGRONG ACOUSTIC INC·Filed 2015·Granted Jul 17, 2018·0 cites·11 claims
- 0230US10134376B2Pneumatic sounder and control system thereofNANJING CHANGRONG ACOUSTIC INC·Filed 2015·Granted Nov 20, 2018·0 cites·9 claims
- 0328US10551063B2Boiler ash remover based on combined flowNANJING CHANGRONG ACOUSTIC INC·Filed 2015·Granted Feb 4, 2020·0 cites·5 claims
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