Assignee
SCHAEFER FRANK W INC
5 granted patents·120 citations·filing 1975–1997
Top patents by PatentIndex Score
5 records- 0192US5725043ALow pressure casting process and apparatusSCHAEFER FRANK W INC·Filed 1996·Granted Mar 10, 1998·48 cites·35 claims
- 0290US4027862AMetal melting furnace with alternate heating systemsSCHAEFER FRANK W INC·Filed 1975·Granted Jun 7, 1977·27 cites·1 claims
- 0378US3996412AAluminum melting furnaceSCHAEFER FRANK W INC·Filed 1975·Granted Dec 7, 1976·19 cites·12 claims
- 0466US6152159AValve assembly and method for use in delivery of molten metalSCHAEFER FRANK W INC·Filed 1997·Granted Nov 28, 2000·13 cites·41 claims
- 0548US5590681AValve assemblySCHAEFER FRANK W INC·Filed 1994·Granted Jan 7, 1997·13 cites·37 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →