The report contains ten-year analysis with the following sections
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Title of patent family (most common patent title) |
Family members |
Filing year |
---|---|---|
storage gas water heater | 9 | 2009 |
combustion control system for gas water heater or wall-hanging stove and control method … 🛈 | 8 | 2015 |
thermostatic condensing gas water heater and control method therefor | 8 | 2011 |
pressurized solar water heater | 7 | 2008 |
water heater having a waterway changeover control apparatus and method for operating the… 🛈 | 7 | 2010 |
mixed energy heater with constant temperature control | 6 | 2008 |
proportional valve body, proportional valve and manufacturing method for proportional va… 🛈 | 6 | 2015 |
gas hot water heating device and system | 5 | 2011 |
economically-operated, dual-energy hot water supply system and method of operating the s… 🛈 | 5 | 2010 |
thermoregulation mixing valve | 5 | 2008 |