HF

Hsiu-Mei Feng

LE Long Well Electronics: 7 patents #1 of 2Top 50%
Overall (All Time): #587,322 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6567922 Pulse type activating system for power supply 2003-05-20
6553711 Switchable mosquito expelling/killing device 2003-04-29
6293044 Switchable mosquito expelling/killing device 2001-09-25
6064448 Induced AC power sources video amplifier 2000-05-16
6060861 Car-used spare power system quick charging device 2000-05-09
6046908 Heat-radiating structure of power adapter 2000-04-04
5990783 Ozone/supersonic wave insect expelling device 1999-11-23
5930131 Controlling device for conversion of DC power to sine wave AC power 1999-07-27
5857985 Multifunctional health massage device 1999-01-12