How many patents does
Harbin Dongan Automotive Engine Manufacturing Company have?
patents
291
families
273
granted
18
applications
273
CN
291
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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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Harbin Dongan Automotive Engine Manufacturing Company
Top ten assignees appearing on patents
2009 - 2018
| harbin dongan automotive engine ma… 🛈 | 280 |
2018
Harbin Dongan Automotive Engine Manufacturing Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| air valve rebounding test method | 2 | 2012 |
| complete vehicle benchmarking testing system | 2 | 2014 |
| gear interlocking device of manual speed changer | 2 | 2012 |
| pneumatic wedge guide type spherical material conveying device | 2 | 2014 |
| electronic pump auxiliary control method for start-stop function of automatic transmissi… 🛈 | 2 | 2012 |
| planetary gear type 6-speed automatic speed changer | 2 | 2012 |
| centralized control system of automobiles | 2 | 2012 |
| planetary transmission mechanism for automatic transmission | 2 | 2012 |
| 6-speed automatic transmission | 2 | 2014 |
| automatic transmission oil pump monomer reliability testing method | 2 | 2011 |