How many patents does
China Coal Technology & Engineering Group Chongqing Research Institute have?
patents
478
families
371
granted
104
applications
374
CN
478
Buy the report
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
contact us for pricing
- VAT will apply to UK companies
- EU companies must supply their VAT number
Check out our sample pages |
Find companies to compare
Many companies now available
companies
12,000+
patents
42 million
patent families
23 million
Search to find companies of interest
read summary of their published patent
the following tables are just extracts from the report
the company report contains more information
China Coal Technology & Engineering Group Chongqing Research Institute
Top ten assignees appearing on patents
2009 - 2018
2009
2018
China Coal Technology & Engineering Group Chongqing Research Institute
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| drill bit vibration source based seismic while drilling side detection method for geolog… 🛈 | 5 | 2015 |
| automatic coal seam desorbable gas content direct measurement device | 2 | 2015 |
| hydraulic drilling rig automatic drill pipe lifting and releasing control system, hydrau… 🛈 | 2 | 2014 |
| rock cross-cut coal uncovering high-pressure water jet flow reaming pressure relieving a… 🛈 | 2 | 2014 |
| method for discriminating gross errors of approaching movement measurement data of roofs… 🛈 | 2 | 2014 |
| underground gas extraction drilling machine | 2 | 2014 |
| gas pressure regulation system and method for coal and gas outburst experiment | 2 | 2014 |
| full-automatic control method of mining hydraulic drilling rig | 2 | 2014 |
| waterproof anti-pollution dust concentration detection device | 2 | 2014 |
| easily maintainable optical dust concentration detection device | 2 | 2014 |