Inventor · disambiguated record
Raymond Wai Hang Chu
Also filed as: CHU RAYMOND · CHU RAYMOND W H · CHU RAYMOND WAI HANG
20 granted patents·5 pending applications·366 citations·filing 1988–2019
95Inventor score
Files withDEFOND MFG LTD15CHU RAYMOND3DEFOND COMPONENTS LTD2DEFOND MANUFACTURING LTD2CHU RAYMOND WAI HANG1
Top patents by PatentIndex Score
25 records- 0192US6741051B2Power tool trigger controlDEFOND MFG LTD·Filed 2002·Granted May 25, 2004·57 cites·18 claims
- 0291US6274828B1On-off switch with off position locking actuatorDEFOND MFG LTD·Filed 2000·Granted Aug 14, 2001·47 cites·18 claims
- 0386US5815363ACircuit breakerDEFOND MFG LTD·Filed 1996·Granted Sep 29, 1998·49 cites·12 claims
- 0481US6765317B2Power supply module for electrical power toolsDEFOND MFG LTD·Filed 2002·Granted Jul 20, 2004·52 cites·15 claims
- 0580US6281482B1Electrical switchDEFOND MFG LTD·Filed 2000·Granted Aug 28, 2001·21 cites·20 claims
- 0672US6483063B2Electrical switch including a metal heat sinkDEFOND MFG LTD·Filed 2001·Granted Nov 19, 2002·17 cites·11 claims
- 0768US6762666B2Toroidal core for a toroidDEFOND MFG LTD·Filed 2002·Granted Jul 13, 2004·10 cites·8 claims
- 0867US5810109AElectrical switchDEFOND MFG LTD·Filed 1996·Granted Sep 22, 1998·21 cites·13 claims
- 0966US6784390B2Electrical switchDEFOND MFG LTD·Filed 2002·Granted Aug 31, 2004·13 cites·2 claims
- 1064US6774509B2Electrical switch assemblyDEFOND MFG LTD·Filed 2002·Granted Aug 10, 2004·12 cites·32 claims
- 1160US8592672B2Foldable solar energy collectorCHU RAYMOND·Filed 2012·Granted Nov 26, 2013·1 cites·20 claims
- 1260US6340926B1Power plug with circuit breakerDEFOND MFG LTD·Filed 1999·Granted Jan 22, 2002·19 cites·7 claims
- 1356US6624991B2Circuit breakerDEFOND MFG LTD·Filed 2001·Granted Sep 23, 2003·8 cites·14 claims
- 1454US6605787B1Electrical switchDEFOND MFG LTD·Filed 2002·Granted Aug 12, 2003·7 cites·12 claims
- 1552US6759608B2Electrical switchDEFOND MFG LTD·Filed 2002·Granted Jul 6, 2004·6 cites·11 claims
- 1650US2016102801A1Rotary device for image-capturing equipmentLEADINWAY CO LTD·Filed 2014·Application pending·0 cites
- 1748US6388408B1Motor current sensing in electric power toolsDEFOND MFG LTD·Filed 2000·Granted May 14, 2002·2 cites·14 claims
- 1847US6130393AElectrical rocker switchDEFOND MANUFACTURING LTD·Filed 1999·Granted Oct 10, 2000·10 cites·19 claims
- 1943US7224558B2Method and apparatus for electromechanically interrupting and reconnecting circuitsDEFOND COMPONENTS LTD·Filed 2004·Granted May 29, 2007·2 cites·20 claims
- 2040US2011277748A1Closable Solar CollectorCHU RAYMOND·Filed 2010·Application pending·0 cites
- 2138US4927379AElectrical connectorJOHNSON ELECTRIC IND MFG·Filed 1988·Granted May 22, 1990·6 cites·11 claims
- 2238US2005254187A1Arc fault circuit interrupterDEFOND COMPONENTS LTD·Filed 2004·Application pending·0 cites
- 2337US6118085AElectrical switchDEFOND MANUFACTURING LTD·Filed 1999·Granted Sep 12, 2000·6 cites·13 claims
- 2437US2008223431A1Foldable solar panelCHU RAYMOND·Filed 2007·Application pending·0 cites
- 2534US2020409465A1Apparatus for detecting gesturesCHU RAYMOND WAI HANG·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →