Assignee
OSTBO NILS
3 granted patents·20 citations·filing 1977–1978
Top patents by PatentIndex Score
3 records- 0151US4192260AAir preheating means at a vertical steam or hot water boilerOSTBO NILS·Filed 1978·Granted Mar 11, 1980·14 cites·3 claims
- 0231US4157078AVertical boilerOSTBO NILS·Filed 1978·Granted Jun 5, 1979·5 cites·4 claims
- 0323US4178880AFurnaceOSTBO NILS·Filed 1977·Granted Dec 18, 1979·1 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →