Howard Tang 名下 PLD 專利:
US5329179 US7375549
US5635855 US7397274
US5751163 US7459931
US6023570 US7495970
US6304099 US7538574
US6356107 US7546498
US6389321 US7554358
US7081771 US7570078
US7095247 US7631223
US7215139 US7675313
US7378873 US7702977
US7725803 US8384427
US7737723 US8108754
US7768300 US8060784
US7834652 US7876125