Assignee
HUGHES DOUGLASS E
US·3 granted patents·389 citations·filing 1996–2000
Top patents by PatentIndex Score
3 records- 0198US6523711B1Automatic valved bottle cap for use with liquid containersHUGHES DOUGLASS E·Filed 2000·Granted Feb 25, 2003·237 cites·13 claims
- 0292US6468435B1Automatic valved filter assemblyHUGHES DOUGLASS E·Filed 2000·Granted Oct 22, 2002·51 cites·32 claims
- 0391US5840185ASports bottle filter cartridgeHUGHES DOUGLASS E·Filed 1996·Granted Nov 24, 1998·101 cites·20 claims
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