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 |
---|---|---|
pup joint for releasing sidewall contact of stratigraphic test device and apparatus | 7 | 2012 |
measuring device for measuring consistency of cement slurry for a consistometer | 6 | 2010 |
submarine device | 6 | 2007 |
high-temperature carbon dioxide corrosion inhibitor | 5 | 2013 |
drilling type side-wall coring device | 5 | 2014 |
conducting wire following protection structure of electric speed reducer | 5 | 2016 |
rock formation testing method and formation testing instrument | 4 | 2013 |
multielement thermal fluid oil production technology with adjustable components | 4 | 2013 |
system for sampling from formation while drilling | 3 | 2014 |
instrument pressure-bearing connecting device and structure | 3 | 2013 |