Assignee
N VIRO ENERGY SYSTEMS LTD
US·7 granted patents·749 citations·filing 1980–1992
Top patents by PatentIndex Score
7 records- 0196US4902431AMethod for treating wastewater sludgeN VIRO ENERGY SYSTEMS LTD·Filed 1988·Granted Feb 20, 1990·120 cites·8 claims
- 0296US4781842AMethod of treating wastewater sludgeN VIRO ENERGY SYSTEMS LTD·Filed 1987·Granted Nov 1, 1988·124 cites·9 claims
- 0395US5275733AProcess to stabilize wastewater sludgeN VIRO ENERGY SYSTEMS LTD·Filed 1992·Granted Jan 4, 1994·106 cites·26 claims
- 0493US4554002ABeneficiating waste sludges for agricultural use and product made therebyN VIRO ENERGY SYSTEMS LTD·Filed 1983·Granted Nov 19, 1985·83 cites·19 claims
- 0592US4432800ABeneficiating kiln dusts utilized in pozzolanic reactionsN VIRO ENERGY SYSTEMS LTD·Filed 1982·Granted Feb 21, 1984·151 cites·21 claims
- 0686US5135664AMethod for treating wastewater sludgeN VIRO ENERGY SYSTEMS LTD·Filed 1990·Granted Aug 4, 1992·65 cites·12 claims
- 0786US4341562ALightweight aggregateN VIRO ENERGY SYSTEMS LTD·Filed 1980·Granted Jul 27, 1982·100 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →