Assignee
VAN DRIE GERHARDT
4 granted patents·31 citations·filing 2005–2012
Top patents by PatentIndex Score
4 records- 0188US7083324B2Integrated fixed film activated sludge system using gravity assisted mixingVAN DRIE GERHARDT·Filed 2005·Granted Aug 1, 2006·23 cites·5 claims
- 0283US8133386B1Biological waste digester and method of operationVAN DRIE GERHARDT·Filed 2011·Granted Mar 13, 2012·7 cites·19 claims
- 0368US7476054B2Process for high-volume disposal of sludge and collection of combustible gasesVAN DRIE GERHARDT·Filed 2007·Granted Jan 13, 2009·1 cites·8 claims
- 0456US8357293B1Biological waste digesterVAN DRIE GERHARDT·Filed 2012·Granted Jan 22, 2013·0 cites·9 claims
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