How many patents does
Yunnan Dahongshan Pipeline Company have?
patents
699
families
582
granted
111
applications
588
CN
684
WO
9
RoW
6
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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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Yunnan Dahongshan Pipeline Company
Top ten assignees appearing on patents
2018
Yunnan Dahongshan Pipeline Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| undisturbed switching method for operating modes of multi-stage pump station and energy … 🛈 | 6 | 2009 |
| delivery pressure detection system for long distance slurry pipeline and detection metho… 🛈 | 6 | 2009 |
| online switching method of high-pressure long-distance slurry pipeline transmission mult… 🛈 | 3 | 2009 |
| zero-disturbance switching method of pipeline transportation standby pump | 3 | 2009 |
| slurry graded conveying and storage shared system | 2 | 2014 |
| hand-operated sampling device for high-density solid slurry | 2 | 2011 |
| safety device for preventing leakage during storage of nitric acid | 2 | 2011 |
| back flushing system and back flushing method | 2 | 2014 |
| device for preventing blocking of ceramic filter feed opening | 2 | 2011 |
| sewage treatment settling pond for iron ore concentrate slurry | 2 | 2011 |