Assignee
CHU CHENG
US·4 granted patents·119 citations·filing 1991–1993
Top patents by PatentIndex Score
4 records- 0189US5349778AVortex tube for exterminating organismsCHU CHENG·Filed 1993·Granted Sep 27, 1994·68 cites·4 claims
- 0272US5228939ASingle wafer plasma etching systemCHU CHENG·Filed 1991·Granted Jul 20, 1993·25 cites·2 claims
- 0363US5330615ASymmetric double water plasma etching systemCHU CHENG·Filed 1991·Granted Jul 19, 1994·16 cites·1 claims
- 0443US5187982AVibration controlled experimenting device provided with a motor with an imbalanced rotorCHU CHENG·Filed 1991·Granted Feb 23, 1993·10 cites·2 claims
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