Assignee
LANGGOOD JOHN K
US·3 granted patents·35 citations·filing 2008–2011
Top patents by PatentIndex Score
3 records- 0185US8265240B2Selectively-expandable speakerphone system and methodLANGGOOD JOHN K·Filed 2008·Granted Sep 11, 2012·16 cites·17 claims
- 0277US8814504B2Fan brakeLANGGOOD JOHN K·Filed 2011·Granted Aug 26, 2014·4 cites·19 claims
- 0375US8212388B2Multi-capacity power supply for electronic devicesLANGGOOD JOHN K·Filed 2008·Granted Jul 3, 2012·15 cites·13 claims
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