How many patents does
Zhengzhou Siwei Electromechanical Equipment Manufacturing Company have?
patents
209
families
188
granted
23
applications
186
CN
208
WO
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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Zhengzhou Siwei Electromechanical Equipment Manufacturing Company
Top ten assignees appearing on patents
2018
Zhengzhou Siwei Electromechanical Equipment Manufacturing Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| tamping mechanism for waste filling | 2 | 2011 |
| cast steel material and preparation method thereof | 2 | 2009 |
| sectional hydraulic pin puller | 2 | 2008 |
| bottom lifting mechanism for hydraulic bracket of thin coal bed | 2 | 2010 |
| circularly self-moving forepoling hydraulic support | 2 | 2011 |
| bottom lifting device for bracket | 2 | 2012 |
| backstop gangue beam suspension swinging beam type gangue filing hydraulic support frame… 🛈 | 2 | 2012 |
| waste filling supporting bracket | 2 | 2010 |
| anti-swing system for transporting bracket | 2 | 2012 |
| integrated hydraulic support for mining and filling | 2 | 2009 |