How many patents does
Daqing Petroleum Institute have?
patents
104
families
86
granted
27
applications
77
CN
104
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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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Daqing Petroleum Institute
Top ten assignees appearing on patents
Daqing Petroleum Institute
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| preparation method for propylene/1-butylene random copolymer resin | 2 | 2010 |
| multi-parameter energy-saving control method for watering pipe network of oil field | 2 | 2010 |
| automatized shaft mouth operation clamp for petroleum well workover | 2 | 2008 |
| magnetic leakage detector out of diameter-variable pipe driven by dc generator | 2 | 2008 |
| large-scale stress outer panel skin net-shell vertical storage tank | 2 | 2008 |
| steel pipe concrete segment type coat node and its construction method | 2 | 2008 |
| method for preparing modification aluminoxane | 2 | 2010 |
| method for preparing silica gel supported titanium-magnesium catalyst | 2 | 2008 |
| novel polyetheretherketone self-lubricating hard wearing compound material and method fo… 🛈 | 2 | 2009 |
| novel driving device for storage base plate magnetic leakage scanning detector | 2 | 2009 |