Assignee
CHEN CHANG-TZU
TW·2 granted patents·5 pending applications·8 citations·filing 2004–2024
Top patents by PatentIndex Score
7 records- 0158US8105276B2Disposable safety injection apparatusCHEN CHANG-TZU·Filed 2006·Granted Jan 31, 2012·7 cites·11 claims
- 0252US2025229035A1Freeze-dry powder injector restoring deviceCHEN CHANG TZU·Filed 2024·Application pending·0 cites
- 0349US7621888B2Safety hypodermic syringeCHEN CHANG-TZU·Filed 2006·Granted Nov 24, 2009·1 cites·7 claims
- 0446US2024066230A1Freeze-dry powder injector restoring deviceCHEN CHANG TZU·Filed 2022·Application pending·0 cites
- 0536US2007173758A1Safety hypodermic syringeCHEN CHANG-TZU·Filed 2006·Application pending·0 cites
- 0634US2006264826A1Self-destructive safety syringeCHEN CHANG-TZU·Filed 2005·Application pending·0 cites
- 0734US2006111678A1Syringe protective structureCHEN CHANG-TZU·Filed 2004·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →