How many patents does
Zhuzhou Cemented Carbide Group Company have?
patents
340
families
264
granted
73
applications
267
CN
332
EP
3
WO
2
US
1
KR
1
RoW
1
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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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Zhuzhou Cemented Carbide Group Company
Top ten assignees appearing on patents
Zhuzhou Cemented Carbide Group Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| wolfram carbide based hard alloy and preparation method thereof | 6 | 2015 |
| pre-tightening locking device for retaining parts on shaft | 6 | 2011 |
| abrasion tester | 2 | 2014 |
| blade used for cemented carbide roller rib engraving processing | 2 | 2011 |
| anti-explosion cooling purifying device for hydrogen reducing furnace | 2 | 2009 |
| hard alloy taking ni-al intermetallic compound as binding phase and preparation method t… 🛈 | 2 | 2013 |
| uniform macromeritic tungsten powder and method for preparing tungsten carbide powder | 2 | 2009 |
| heat-resistant steel structure hard alloy and preparation method thereof | 2 | 2014 |
| hard alloy roll collar for finished frame of high-speed wire mill and preparation method… 🛈 | 2 | 2009 |
| preparation method of wc-co hard alloy for mine | 2 | 2014 |