The report contains ten-year analysis with the following sections
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Title of patent family (most common patent title) |
Family members |
Filing year |
---|---|---|
high carbon content and high strength heat-treated steel rail and method for producing t… 🛈 | 10 | 2010 |
steel rail for high speed and quasi-high speed railways and manufacturing method thereof | 9 | 2010 |
behandlungsverfahren einer ausweichschiene und ausweichschiene | 7 | 2012 |
high-strength and highly fatigue-resistant steel rail and production method thereof | 6 | 2015 |
hyper-eutectoid steel rail and manufacturing method thereof | 6 | 2015 |
pearlitic steel rail with high strength and toughness and producing method thereof | 6 | 2014 |
treatment method of sodium-roasted-leached-acid ammonium salt vanadium precipitation was… 🛈 | 5 | 2011 |
high-impact-toughness steel rail and production method thereof | 5 | 2015 |
high-strength bainite steel rail and production method thereof | 4 | 2014 |
zero calibration method for non-contact type straightening machine | 2 | 2010 |