How many patents does
Henan Hanwei Electronics Company have?
patents
224
families
191
granted
34
applications
190
CN
224
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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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Henan Hanwei Electronics Company
Top ten assignees appearing on patents
Henan Hanwei Electronics Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| novel prepayment type gas meter and target gas measurement method thereof | 2 | 2012 |
| variable wavelength gas infrared sensor | 2 | 2011 |
| solenoid valve control circuit and solenoid valve switch-in self-checking method thereof | 2 | 2012 |
| electromagnetic valve control circuit and electromagnetic valve closing self-checking me… 🛈 | 2 | 2012 |
| zero self-calibration method of co2 gas sensor in air | 2 | 2010 |
| solar energy gas detector | 2 | 2011 |
| infrared multifrequency flame detector | 2 | 2010 |
| novel microprocessor circuit | 2 | 2011 |
| target gas metering gas meter and target gas metering method thereof | 2 | 2012 |
| inflammable gas detecting instrument and desulphurization method thereof | 2 | 2011 |