Individual holder
WALTER DOUGLAS P
US·2 granted patents·13 citations·filing 2009–2011
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
2 records- 0179US8226292B1Submersible, circulation system for relatively small bodies of water such as a small pondWALTER DOUGLAS P·Filed 2009·Granted Jul 24, 2012·12 cites·41 claims
- 0262US8911219B2Submersible water circulation system for enclosed tanksWALTER DOUGLAS P·Filed 2011·Granted Dec 16, 2014·1 cites·23 claims
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