How many patents does
Yantai Jereh Petroleum Equipment Technologies Company have?
patents
253
families
221
granted
22
applications
231
CN
242
WO
6
US
4
RoW
1
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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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Yantai Jereh Petroleum Equipment Technologies Company
Top ten assignees appearing on patents
2018
Yantai Jereh Petroleum Equipment Technologies Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| continuous oil pipe clamp mechanism | 5 | 2012 |
| floating clamping device for injection head of continuous oil pipe | 5 | 2011 |
| integrated well head tubular column hangs mechanism | 3 | 2015 |
| coiled tubing clamping device and injection head using same | 3 | 2012 |
| clear water controlling device for high-energy mixer and high-energy mixer | 3 | 2011 |
| coiled tubing clamping device and injection head using same | 3 | 2011 |
| control equipment of direct-fired liquid nitrogen evaporator | 2 | 2011 |
| pipe arranging device for headframe | 2 | 2010 |
| secondary platform used for oil field operation | 2 | 2014 |
| hidden turnover ladder and oil field operation equipment | 2 | 2014 |