Inventor · disambiguated record
Densen Cao
Also filed as: CAO DENSEN · CAO DENSEN B
88 granted patents·67 pending applications·3,498 citations·filing 1999–2025
99Inventor score
Top patents by PatentIndex Score
155 records- 0199US7271420B2Monolitholic LED chip to emit multiple colorsCAO GROUP INC·Filed 2005·Granted Sep 18, 2007·282 cites·16 claims
- 0299US6634770B2Light source using semiconductor devices mounted on a heat sinkFiled 2001·Granted Oct 21, 2003·278 cites·17 claims
- 0398US6465961B1Semiconductor light source using a heat sink with a plurality of panelsCAO GROUP INC·Filed 2001·Granted Oct 15, 2002·225 cites·20 claims
- 0497US11793617B2Oral suction deviceCAO GROUP INC·Filed 2022·Granted Oct 24, 2023·8 cites·2 claims
- 0597US8653723B2LED light bulbs for space lightingCAO DENSEN·Filed 2010·Granted Feb 18, 2014·117 cites·22 claims
- 0697US6746885B2Method for making a semiconductor light sourceFiled 2001·Granted Jun 8, 2004·156 cites·22 claims
- 0797US6719559B2Curing lightFiled 2002·Granted Apr 13, 2004·107 cites·20 claims
- 0896US9295537B2Three dimensional curing lightCAO DENSEN·Filed 2010·Granted Mar 29, 2016·29 cites·11 claims
- 0996US7976211B2Light bulb utilizing a replaceable LED light sourceCAO DENSEN·Filed 2007·Granted Jul 12, 2011·42 cites·24 claims
- 1095US12246105B2UV disinfection systemCAO GROUP INC·Filed 2023·Granted Mar 11, 2025·1 cites·8 claims
- 1195US11896729B2UV disinfection systemCAO GROUP INC·Filed 2021·Granted Feb 13, 2024·2 cites·9 claims
- 1295US6783362B2Dental curing light using primary and secondary heat sink combinationCAO GROUP INC·Filed 2001·Granted Aug 31, 2004·80 cites·20 claims
- 1395US6755649B2Curing lightCAO GROUP INC·Filed 2002·Granted Jun 29, 2004·83 cites·20 claims
- 1495US6719558B2Curing lightFiled 2002·Granted Apr 13, 2004·80 cites·20 claims
- 1594US7728345B2Semiconductor light source for illuminating a physical space including a 3-dimensional lead frameCAO GROUP INC·Filed 2006·Granted Jun 1, 2010·20 cites·12 claims
- 1694US6719446B2Semiconductor light source for providing visible light to illuminate a physical spaceFiled 2001·Granted Apr 13, 2004·97 cites·7 claims
- 1793US6824294B2Light for use in activating light-activated materials, the light having a plurality of chips mounted in a gross well of a heat sink, and a dome covering the chipsCAO GROUP INC·Filed 2002·Granted Nov 30, 2004·62 cites·37 claims
- 1892US6926524B2Curing lightCAO GROUP INC·Filed 2002·Granted Aug 9, 2005·60 cites·19 claims
- 1992US6780010B2Curing lightCAO GROUP INC·Filed 2002·Granted Aug 24, 2004·56 cites·20 claims
- 2092US6700158B1Trench corner protection for trench MOSFETFAIRCHILD SEMICONDUCTOR·Filed 2000·Granted Mar 2, 2004·72 cites·9 claims
- 2191US7267457B2Method for detecting forensic evidenceCAO GROUP INC·Filed 2005·Granted Sep 11, 2007·21 cites·18 claims
- 2291US7252678B2Forensic light using semiconductor light sourceOSTLER CALVIN D·Filed 2005·Granted Aug 7, 2007·41 cites·19 claims
- 2391US6634771B2Semiconductor light source using a primary and secondary heat sink combinationFiled 2001·Granted Oct 21, 2003·66 cites·8 claims
- 2491US6331111B1Curing light system useful for curing light activated composite materialsCAO GROUP INC·Filed 1999·Granted Dec 18, 2001·329 cites·36 claims
- 2590US7530808B2Binary dental bleaching using switch-closable double barrel syringeCAO GROUP INC·Filed 2004·Granted May 12, 2009·38 cites·22 claims
- 2690US6981867B2Curing lightCAO GROUP INC·Filed 2002·Granted Jan 3, 2006·45 cites·15 claims
- 2790US6755648B2Curing lightCAO GROUP INC·Filed 2002·Granted Jun 29, 2004·77 cites·11 claims
- 2889US8201985B2Light bulb utilizing a replaceable LED light sourceCAO DENSEN·Filed 2011·Granted Jun 19, 2012·8 cites·10 claims
- 2989US7786499B2Replaceable through-hole high flux LED lampCAO GROUP INC·Filed 2008·Granted Aug 31, 2010·11 cites·6 claims
- 3089US7283230B2Semiconductor forensic light kitCAO GROUP INC·Filed 2005·Granted Oct 16, 2007·22 cites·16 claims
- 3189US2023346655A1Peroxide gel compositionsCAO GROUP INC·Filed 2023·Application pending·0 cites
- 3289US2023404871A1Peroxide gel compositionsCAO GROUP INC·Filed 2023·Application pending·0 cites
- 3388US8998616B2Laser curettageCAO DENSEN·Filed 2007·Granted Apr 7, 2015·5 cites·12 claims
- 3488US8834457B2Modular surgical laser systemsCAO DENSEN·Filed 2008·Granted Sep 16, 2014·40 cites·8 claims
- 3588US6988891B2Curing lightCAO GROUP INC·Filed 2002·Granted Jan 24, 2006·37 cites·17 claims
- 3688US6974319B2Curing lightCAO GROUP INC·Filed 2002·Granted Dec 13, 2005·40 cites·18 claims
- 3788US6971875B2Dental curing lightCAO GROUP INC·Filed 2001·Granted Dec 6, 2005·34 cites·21 claims
- 3888US6971876B2Curing lightCAO GROUP INC·Filed 2002·Granted Dec 6, 2005·41 cites·11 claims
- 3988US6954270B2Method for detecting forensic evidenceCAO GROUP INC·Filed 2003·Granted Oct 11, 2005·39 cites·26 claims
- 4088US6932600B2Curing lightCAO GROUP INC·Filed 2002·Granted Aug 23, 2005·38 cites·6 claims
- 4187US11826445B2Peroxide gel compositionsCAO GROUP INC·Filed 2022·Granted Nov 28, 2023·0 cites·2 claims
- 4287US7224001B2Semiconductor light sourceCAO DENSEN·Filed 2001·Granted May 29, 2007·50 cites·5 claims
- 4387US6988890B2Curing lightCAO GROUP INC·Filed 2002·Granted Jan 24, 2006·39 cites·5 claims
- 4486US12393061B2Electronic loupeCAO GROUP INC·Filed 2023·Granted Aug 19, 2025·0 cites·19 claims
- 4586USD740117SPackaging trayCAO GROUP INC·Filed 2014·Granted Oct 6, 2015·37 cites·1 claims
- 4686US2025355278A1Electronic loupeCAO GROUP INC·Filed 2025·Application pending·0 cites
- 4786US2025355279A1Electronic loupeCAO GROUP INC·Filed 2025·Application pending·0 cites
- 4886US2025355277A1Electronic loupeCAO GROUP INC·Filed 2025·Application pending·0 cites
- 4986US2025362529A1Electronic loupeCAO GROUP INC·Filed 2025·Application pending·0 cites
- 5085US12353066B2Electronic loupeCAO GROUP INC·Filed 2023·Granted Jul 8, 2025·0 cites·9 claims
Showing the top 50 of 155 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →