Inventor · disambiguated record
Earl Refsland
Also filed as: REFSLAND EARL · REFSLAND EARL R
3 granted patents·81 citations·filing 1988–2016
67Inventor score
Top patents by PatentIndex Score
3 records- 0187US4926856AFeeding systemHUDSON OXYGEN THERAPY SALES CO·Filed 1988·Granted May 22, 1990·79 cites·11 claims
- 0253US9526853B2Ventilation systemREFSLAND EARL·Filed 2011·Granted Dec 27, 2016·2 cites·22 claims
- 0348US11007334B2Ventilation systemALLIED HEALTHCARE PROD·Filed 2016·Granted May 18, 2021·0 cites·14 claims
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