Assignee
BIO GRO SYSTEMS INC
US·6 granted patents·316 citations·filing 1988–1995
Top patents by PatentIndex Score
6 records- 0194US5069801AIndirect heat drying and simultaneous pelletization of sludgeBIO GRO SYSTEMS INC·Filed 1990·Granted Dec 3, 1991·70 cites·16 claims
- 0293US5215670AProcess of drying and pelletizing sludge in indirect dryer having recycled sweep airBIO GRO SYSTEMS INC·Filed 1991·Granted Jun 1, 1993·63 cites·9 claims
- 0390US5435923AMethod for the treatment of sewage sludge and the likeBIO GRO SYSTEMS INC·Filed 1993·Granted Jul 25, 1995·66 cites·17 claims
- 0480US5259977AMethod and apparatus for the treatment of sewage sludge and the likeBIO GRO SYSTEMS INC·Filed 1992·Granted Nov 9, 1993·42 cites·11 claims
- 0569US5679262AMethod for alkaline treatment of sewage sludge for beneficial useBIO GRO SYSTEMS INC·Filed 1995·Granted Oct 21, 1997·36 cites·21 claims
- 0666US4872998AApparatus and process for forming uniform, pelletizable sludge productBIO GRO SYSTEMS INC·Filed 1988·Granted Oct 10, 1989·39 cites·18 claims
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