How many patents does
China University Of Petroleum have?
patents
4,068
families
3,074
granted
830
applications
3,238
CN
3,867
US
64
WO
53
EP
32
RoW
52
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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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China University Of Petroleum
Top ten assignees appearing on patents
2009 - 2018
2009
China University Of Petroleum
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| method for revamping an hf or sulphuric acid alkylation unit and method for the procduct… 🛈 | 18 | 2009 |
| method for revamping an hf or sulphuric acid alkylation unit | 13 | 2009 |
| process for preparing an alkylate | 12 | 2009 |
| process for preparing an alkylate | 12 | 2009 |
| alkylation method using ionic liquid as catalyst | 12 | 2009 |
| method for revamping an hf or sulphuric acid alkylation unit | 11 | 2009 |
| process for preparing an alkylate | 10 | 2009 |
| process for preparing an alkylate | 10 | 2009 |
| process for preparing alkylate comprising an improved solids removal step | 10 | 2012 |
| process for regeneration of ionic liquid catalyst | 9 | 2011 |