Inventor · disambiguated record
Douglas S. De Lange
Also filed as: DE LANGE DOUGLAS S · DE LANGE DOUGLAS SCOTT
3 granted patents·12 citations·filing 2014–2016
58Inventor score
Top patents by PatentIndex Score
3 records- 0181US9114403B1Gravity recovery system and method for recovery of heavy metals from sands and gravelsDE LANGE DOUGLAS SCOTT·Filed 2014·Granted Aug 25, 2015·12 cites·27 claims
- 0244US9399225B1Gravity recovery system and method for recovery of heavy metals from sands and gravelsDE LANGE DOUGLAS SCOTT·Filed 2015·Granted Jul 26, 2016·0 cites·6 claims
- 0336US9636690B2Gravity recovery system and method for recovery of heavy metals from sands and gravelsDE LANGE DOUGLAS S·Filed 2016·Granted May 2, 2017·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →