Assignee
HOFFLAND ROBERT O
US·4 granted patents·35 citations·filing 1986–2021
Top patents by PatentIndex Score
4 records- 0170US7585413B2Method and apparatus for treating animal waste and wastewaterHOFFLAND ROBERT O·Filed 2005·Granted Sep 8, 2009·4 cites·31 claims
- 0253US4747691AMethod and apparatus for diluting and activating polymerHOFFLAND ROBERT O·Filed 1986·Granted May 31, 1988·20 cites·8 claims
- 0346US11634349B2Two-stage biogas production system for anaerobic digestersHOFFLAND ROBERT O·Filed 2021·Granted Apr 25, 2023·0 cites·20 claims
- 0440US4952066AMethod and apparatus for diluting and activating polymerHOFFLAND ROBERT O·Filed 1989·Granted Aug 28, 1990·11 cites·9 claims
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