How many patents does
Guizhou Aerospace Kaishan Petroleum Instrument Company have?
patents
233
families
196
granted
37
applications
196
CN
233
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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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Guizhou Aerospace Kaishan Petroleum Instrument Company
Top ten assignees appearing on patents
2018
Guizhou Aerospace Kaishan Petroleum Instrument Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| method and device for hollow water-distribution flow adjusting | 2 | 2013 |
| detecting method for average sound velocity inside oil well | 2 | 2013 |
| sealing examining device and sealing examining method for bridge offset well | 2 | 2014 |
| new method for pump diagram metering stability | 2 | 2014 |
| high-temperature, wide-input and high-precision power source | 2 | 2014 |
| method and device for judging position of test and regulation instrument in pit | 2 | 2014 |
| triolocation compensation algorithm for single-shaft fiber-optic gyroscope in oil well s… 🛈 | 2 | 2014 |
| power supply scheme applied to high-temperature pressure meter and used for normal-tempe… 🛈 | 2 | 2014 |
| direct reading method for aperture of adjustable blanking plug water nozzle | 2 | 2014 |
| piston flow detection method and device for injection of carbon dioxide to oilfield | 2 | 2014 |