Assignee
LANGILL EDWIN R
US·3 granted patents·48 citations·filing 1992–1993
Top patents by PatentIndex Score
3 records- 0166US5154205AMethod and apparatus for maintaining level of water in above-ground swimming poolsLANGILL EDWIN R·Filed 1992·Granted Oct 13, 1992·27 cites·8 claims
- 0238US5253374AMethod and apparatus for maintaining level of water in above-ground swimming poolsLANGILL EDWIN R·Filed 1992·Granted Oct 19, 1993·15 cites·1 claims
- 0333US5358003AMethod and apparatus for maintaining level of water in above-ground swimming poolsLANGILL EDWIN R·Filed 1993·Granted Oct 25, 1994·6 cites·2 claims
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