How many patents does
Powerchina Guiyang Engineering Corporation have?
patents
627
families
549
granted
78
applications
549
CN
627
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The report contains ten-year analysis with the following sections
- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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Powerchina Guiyang Engineering Corporation
Top ten assignees appearing on patents
2009
2018
Powerchina Guiyang Engineering Corporation
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| improving method for crest outlet plane operating gate and structure thereof | 2 | 2015 |
| structure for providing ecological flow for lower reach of water resources and hydropowe… 🛈 | 2 | 2015 |
| jet flow preventing water seal method and device of plane gate | 2 | 2015 |
| underground powerhouse wire outgoing arrangement mode and structure | 2 | 2015 |
| method and device for quickening water filling and pressure relief of plane gate | 2 | 2015 |
| method and device for arranging highway desilting basin | 2 | 2015 |
| test method and model for simulating anti-seepage curtain of reservoir dam | 2 | 2015 |
| combined vertical post for cable bridge | 2 | 2015 |
| pre-stressed anchor cable isolation support installation structure | 2 | 2015 |
| method and device for measuring height of distance between piezometric tube level and pi… 🛈 | 2 | 2015 |