Assignee
CHANG RICHARD
US·8 granted patents·4 pending applications·125 citations·filing 2004–2021
Top patents by PatentIndex Score
12 records- 0194US8924938B2Software testing using machine learningCHANG RICHARD·Filed 2007·Granted Dec 30, 2014·54 cites·20 claims
- 0285US8287335B2Abrasive apparatus of a sanderCHANG RICHARD·Filed 2010·Granted Oct 16, 2012·6 cites·6 claims
- 0378US7939783B2Hand-held electric sealer with detachable sealing moduleCHANG RICHARD·Filed 2007·Granted May 10, 2011·4 cites·10 claims
- 0475USD579034SElectric sealerCHANG RICHARD·Filed 2008·Granted Oct 21, 2008·21 cites·1 claims
- 0573US7810540B2Hand-held electric sealer with dual headsCHANG RICHARD·Filed 2008·Granted Oct 12, 2010·3 cites·20 claims
- 0672US7285934B2Combination of power supply and detachable electric implementCHANG RICHARD·Filed 2004·Granted Oct 23, 2007·17 cites·10 claims
- 0772USD542315SElectric sealerCHANG RICHARD·Filed 2006·Granted May 8, 2007·19 cites·1 claims
- 0863US9132521B2Main shaft structure of tool machineCHANG RICHARD·Filed 2012·Granted Sep 15, 2015·1 cites·8 claims
- 0951US2008314888A1Sealing mechanism for hand-held electric sealerCHANG RICHARD·Filed 2007·Application pending·0 cites
- 1045US2021339900A1Handheld rapid heating device for cutting and adhering thin filmCHANG RICHARD·Filed 2021·Application pending·0 cites
- 1144US2006023872A1Portable electronic device customization kitCHANG RICHARD·Filed 2005·Application pending·0 cites
- 1239US2011253260A1Wood cutting machine with a fine adjustment deviceCHANG RICHARD·Filed 2010·Application pending·0 cites
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