How many patents does
Hebei Iron And Steel Co., Ltd. Chengde Branch have?
patents
498
families
417
granted
81
applications
417
CN
498
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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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Hebei Iron And Steel Co., Ltd. Chengde Branch
Top ten assignees appearing on patents
2009
2018
Hebei Iron And Steel Co., Ltd. Chengde Branch
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| method for blowing furnace washing agent by using air inlet of blast furnace | 2 | 2010 |
| slag former and method for prolonging service life of furnace lining of ferrovanadium el… 🛈 | 2 | 2015 |
| manganese vanadium iron nitride and production method thereof | 2 | 2015 |
| method for utilizing vanadium in steel slag | 2 | 2015 |
| martensite broad hot strip with tensile strength of 1500mpa level and production method … 🛈 | 2 | 2015 |
| low-cost production method of high-carbon 50 vanadium iron | 2 | 2014 |
| method for smelting medium/high-carbon hard-wired steel by vanadium-titanium containing … 🛈 | 2 | 2012 |
| method for improving vanadium yield in vanadium extraction process via sodium salt roast… 🛈 | 2 | 2014 |
| smelting process for production of grade ii hot-rolled reinforced bar | 2 | 2012 |
| method for smelting non-oriented silicon steel by using molten iron containing vanadium … 🛈 | 2 | 2015 |