Inventor · disambiguated record
Qingcheng Cai
Also filed as: CAI QINGCHENG
3 granted patents·1 pending application·18 citations·filing 2009–2016
67Inventor score
Technology areasB02C
Top patents by PatentIndex Score
4 records- 0188US8091809B2Shredder with jam proof systemHU JIN·Filed 2009·Granted Jan 10, 2012·12 cites·24 claims
- 0279US9283567B2Shredder with jam proof systemHU JIN·Filed 2011·Granted Mar 15, 2016·3 cites·6 claims
- 0361US2016151787A1Shredder with jam proof systemFELLOWES INC·Filed 2016·Application pending·0 cites
- 0457US8205815B2Paper alignment sensor arrangementCAI QINGCHENG·Filed 2009·Granted Jun 26, 2012·3 cites·56 claims
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