Individual holder
HAGENDOORN WILLEM J
2 granted patents·22 citations·filing 1982–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
2 records- 0179US4450569AMethod and structure for maintaining effluent pressure range within an electric arc melting furnaceHAGENDOORN WILLEM J·Filed 1982·Granted May 22, 1984·22 cites·7 claims
- 0221US5259867AMethod of treating dross materials in metallurgical melting processesHAGENDOORN WILLEM J·Filed 1992·Granted Nov 9, 1993·0 cites·10 claims
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