How many patents does
Chengdu Qinchuan Technology Development Company have?
patents
317
families
211
granted
74
applications
243
CN
291
EP
10
US
7
WO
5
JP
4
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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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Chengdu Qinchuan Technology Development Company
Top ten assignees appearing on patents
2009 - 2018
| chengdu qinchuan technology develo… 🛈 | 240 |
| chengdu qinchuan technology company | 1 |
2018
Chengdu Qinchuan Technology Development Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| cutting type diaphragm gas meter | 10 | 2013 |
| internet of things automotive intelligent control panel and internet of things automotiv… 🛈 | 7 | 2013 |
| internet of things system used for intelligent gas meter and information transmission me… 🛈 | 6 | 2015 |
| electric automobile pwm rectification and voltage current transformation pulse charging … 🛈 | 6 | 2011 |
| internet of things information system | 6 | 2015 |
| bidirectional non-blockage turning gear transmission gas meter dedicated cut-off valve | 5 | 2013 |
| information safety management module for intelligent ic card water meter | 4 | 2013 |
| differential pricing implementation method of ic card intelligent water meter | 2 | 2015 |
| internet of things intelligent water meter tiered pricing implementation method | 2 | 2015 |
| intelligent teletransmission water meter with step pricing function | 2 | 2015 |