How many patents does
National Institute Of Metrology, P.R.C have?
patents
1,044
families
671
granted
340
applications
704
CN
986
US
30
WO
14
GB
2
JP
1
EP
1
RoW
10
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- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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National Institute Of Metrology, P.R.C
Top ten assignees appearing on patents
2009 - 2018
2009
2018
National Institute Of Metrology, P.R.C
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| preparation method for alumina supported cerium oxide powder material | 10 | 2015 |
| three-phase electric energy measurement apparatus | 9 | 2009 |
| grating external cavity semiconductor laser and its quasi synchronous tuning method | 9 | 2008 |
| monolithic folded f-p cavity and semiconductor laser using the same | 8 | 2008 |
| infrasound generating device based on displacement feedback type vibration table | 5 | 2012 |
| electromagnetic vibration table system with adjustable electric viscoelastic support dev… 🛈 | 5 | 2011 |
| vibration table system with feedback control device based on linear optical grating ruler | 4 | 2011 |
| a measuring device for measuring large mass with optical refraction and displacement mea… 🛈 | 4 | 2016 |
| network quality analysis method and apparatus | 4 | 2015 |
| high-diffusion-coefficient and high-brightness light source generation device | 4 | 2014 |