Assignee
YAO KUO-CHING
1 granted patent·2 pending applications·25 citations·filing 2005–2006
Technology mixE06C3
Top patents by PatentIndex Score
3 records- 0183US7316293B2Extension ladder with improved mechanismYAO KUO-CHING·Filed 2006·Granted Jan 8, 2008·25 cites·13 claims
- 0241US2006283664A1Extension ladder apparatusYAO KUO-CHING·Filed 2005·Application pending·0 cites
- 0341US2006283665A1Extension ladder with improved structureYAO KUO-CHING·Filed 2005·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →