Individual holder
KELMAR JOHN J
US·3 granted patents·21 citations·filing 1979–1989
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0159US4670049AOxygen blast furnace for direct steel makingKELMAR JOHN J·Filed 1985·Granted Jun 2, 1987·15 cites·12 claims
- 0235US4249996AElectrically heated by-product coke ovenKELMAR JOHN J·Filed 1979·Granted Feb 10, 1981·3 cites·4 claims
- 0330US4978106AIron reduction apparatusKELMAR JOHN J·Filed 1989·Granted Dec 18, 1990·3 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →