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 |
---|---|---|
crown-shaped separation device for separating oil and water in well | 10 | 2011 |
multiphase shock excitation sand remover and sand removing method of sand-containing flu… 🛈 | 9 | 2012 |
a corrugated settling cup and a multi-cup uniform flux gas anchor | 7 | 2007 |
multi-phase cyclone desander and multi-phase cyclone desanding method | 3 | 2013 |
single crank double stroke flexible rope beam-pumping unit | 3 | 2005 |
quantitative test method for residual polymer in polymer flooding reservoir rocks | 3 | 2010 |
multi-barrel cyclone desander and multi-barrel cyclone desanding method | 3 | 2013 |
double-stroke flexible crank connecting device of pumping unit | 2 | 2009 |
temperature difference type single well metering device | 2 | 2009 |
industrial product of hexadecyl xylol sulfonate and production method thereof, surfactan… 🛈 | 2 | 2013 |