How many patents does
Hunan Tyen Machinery Company have?
patents
312
families
272
granted
41
applications
271
CN
312
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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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Hunan Tyen Machinery Company
Top ten assignees appearing on patents
2009 - 2018
| hunan tyen machinery company | 286 |
| hunan tianyan machinery company | 2 |
2018
Hunan Tyen Machinery Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| turbocharger core oil extracting device | 2 | 2016 |
| level-variable turbocharging system and engine with same | 2 | 2013 |
| turbine blank wax pattern casting mold for turbosuperchager with pneumatic jacking mecha… 🛈 | 2 | 2012 |
| device for testing opening flow of control valve of automobile waste recycling system | 2 | 2013 |
| automatic mixing device for gypsum slurry | 2 | 2012 |
| turbocharger capable of changing flowing channel through lever braking | 2 | 2013 |
| portable turbocharger mounting angle adjusting and measuring device | 2 | 2013 |
| electric control hydraulic actuator | 2 | 2013 |
| marine turbocharger bearing body with rotation stopping function | 2 | 2013 |
| method and device for detecting airtightness of turbine box assembly | 2 | 2015 |