Assignee
CHANG PI-HSIA
2 granted patents·2 pending applications·87 citations·filing 2004–2012
Top patents by PatentIndex Score
4 records- 0190US7278626B1Adjustable prying barCHANG PI-HSIA·Filed 2006·Granted Oct 9, 2007·48 cites·3 claims
- 0282US7281452B2Wrench having a ratchet head able to vertically and horizontally rotate for 360°CHANG PI-HSIA·Filed 2004·Granted Oct 16, 2007·39 cites·6 claims
- 0344US2009217789A1Ratchet control structureCHANG PI-HSIA·Filed 2008·Application pending·0 cites
- 0441US2013269491A1Hand tool with pivotable shankCHANG PI-HSIA·Filed 2012·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →