How many patents does
Sinopec Luoyang Petrochemical Engineering Company have?
patents
399
families
303
granted
118
applications
281
CN
392
US
4
WO
1
RoW
2
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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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Sinopec Luoyang Petrochemical Engineering Company
Top ten assignees appearing on patents
2009 - 2018
2018
Sinopec Luoyang Petrochemical Engineering Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| short process flow recycle hydrogen desulfuration method and apparatus | 6 | 2008 |
| fired heater and method of using the same | 4 | 2012 |
| c4 catalytic conversion method | 2 | 2010 |
| hydrogenation scale and corrosion inhibitor and application of scale and corrosion inhib… 🛈 | 2 | 2010 |
| dirty oil dehydration unit | 2 | 2010 |
| double riser catalytic cracking method and device | 2 | 2010 |
| method for preparing alloy coating on iron and steel surface | 2 | 2010 |
| recovery method of waste heat of flue gas | 2 | 2010 |
| catalytic conversion steam stripping device | 2 | 2010 |
| crude oil desalting agent and preparation method thereof | 2 | 2009 |