After three years of hard work, we have successfully obtained the patents of the EU, USA and Taiwan, 

which are mainly aimed at the structural patents of LED filament lamps.

This structural without using a stem of a conventional LED light bulb, thereby simplifying fabrication

processes of the LED light bulb and reducing fabrication costs thereof. Moreover, the

LED light bulb does not require an internal space for accommodating the stem, and

thus its length can be effectively reduced to ideally become a small-size light bulb.

More importantly, the particularity of this structure completely avoids the patent scope of LEDISONG.