Assignee
ZHONG QINGHUA
CN·4 granted patents·1 pending application·20 citations·filing 2009–2021
Top patents by PatentIndex Score
5 records- 0187USD967308SResistance bandZHONG QINGHUA·Filed 2021·Granted Oct 18, 2022·11 cites·1 claims
- 0270US8298949B2Profile and CD uniformity control by plasma oxidation treatmentZHONG QINGHUA·Filed 2009·Granted Oct 30, 2012·3 cites·13 claims
- 0359US8431461B1Silicon nitride dry trim without top pulldownZHONG QINGHUA·Filed 2011·Granted Apr 30, 2013·1 cites·19 claims
- 0452USD863470SAnti-skid resistance bandZHONG QINGHUA·Filed 2019·Granted Oct 15, 2019·5 cites·1 claims
- 0536US2014051256A1Etch with mixed mode pulsingZHONG QINGHUA·Filed 2012·Application pending·0 cites
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