How many patents does
Petrochina Company have?
patents
16,740
families
12,737
granted
3,808
applications
12,932
CN
16,282
US
139
WO
110
EP
69
GB
25
JP
20
KR
5
RoW
90
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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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patents
42 million
patent families
23 million
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Petrochina Company
Top ten assignees appearing on patents
2009 - 2018
Petrochina Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| quantitative calculation method for hydrocarbon saturation of fractured reservoir | 13 | 2009 |
| a selective hydrogenation catalyst and the preparation thereof | 12 | 2007 |
| a selective nickel based hydrogenation catalyst and the preparation thereof | 12 | 2007 |
| heavy oil catalytic cracking catalyst and preparation method therefor | 12 | 2011 |
| high light received heavy oil catalytic cracking catalyst and preparation method therefor | 11 | 2011 |
| phosphorus-containing ultrastable y-type rare earth molecular sieve and preparation meth… 🛈 | 10 | 2012 |
| crown-shaped separation device for separating oil and water in well | 10 | 2011 |
| conversion of lipids | 10 | 2012 |
| selective hydrogenation catalyst for unsaturated compound | 10 | 2011 |
| a catalyst for homopolymerizing and copolymerizing propylene and its preparation and use | 9 | 2008 |