How many patents does
Chongqing Machine Tool have?
patents
346
families
309
granted
37
applications
309
CN
346
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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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Chongqing Machine Tool
Top ten assignees appearing on patents
2009 - 2018
| chongqing machine tool (group) com… 🛈 | 324 |
| chongqing iron & steel (group) com… 🛈 | 1 |
2018
Chongqing Machine Tool
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| automatic quick change device for workpiece fixtures for gear shaving machine | 2 | 2011 |
| direct-driven gear hobbing machine worktable | 2 | 2015 |
| hobbing-chamfering-burring compound machine tool | 2 | 2014 |
| vertical numerically controlled chamfering machine | 2 | 2014 |
| coder disassembling tool | 2 | 2014 |
| high-rigidity grinding main shaft system | 2 | 2014 |
| machine tool feeding and discharging bin | 2 | 2014 |
| gear hobbing machine small holder repeated positioning and locking device | 2 | 2014 |
| automatic tooth aligning mechanism for large-sized gear hobbing machine and tooth aligni… 🛈 | 2 | 2014 |
| straight-outline and spiral-plane worm wheel | 2 | 2013 |