Assignee
SCHEFFER KARL D
3 granted patents·136 citations·filing 1978–1982
Top patents by PatentIndex Score
3 records- 0194US4457352ASystem and process for the abatement of casting pollution, reclaiming resin bonded sand, and/or recovering a low BTU fuel from castingsSCHEFFER KARL D·Filed 1982·Granted Jul 3, 1984·48 cites·12 claims
- 0293US4178429ACatalyst for curing resinsSCHEFFER KARL D·Filed 1978·Granted Dec 11, 1979·55 cites·31 claims
- 0390US4325424ASystem and process for abatement of casting pollution, reclaiming resin bonded sand, and/or recovering a low BTU fuel from castingsSCHEFFER KARL D·Filed 1980·Granted Apr 20, 1982·33 cites·11 claims
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