Assignee
ZHANG ZHUANGDOU
CN·4 granted patents·1 pending application·0 citations·filing 2014–2019
Top patents by PatentIndex Score
5 records- 0165US11040890B2Tannery process with effluent recyclingZHANG ZHUANGDOU·Filed 2019·Granted Jun 22, 2021·0 cites·14 claims
- 0258US10501336B2Tannery process with effluent recyclingZHANG ZHUANGDOU·Filed 2017·Granted Dec 10, 2019·0 cites·12 claims
- 0355US9776887B2Tannery process with effluent recyclingZHANG ZHUANGDOU·Filed 2014·Granted Oct 3, 2017·0 cites·2 claims
- 0436US10260115B2Leather production using waste liquidsZHANG ZHUANGDOU·Filed 2016·Granted Apr 16, 2019·0 cites·1 claims
- 0530US2016186275A1Tanning Process With Reduced Waste DischargeZHANG ZHUANGDOU·Filed 2015·Application pending·0 cites
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