Assignee
HEIEN SIGURD
NO·3 granted patents·27 citations·filing 1972–1975
Top patents by PatentIndex Score
3 records- 0156US3958426AOffshore harbor tank and installationHEIEN SIGURD·Filed 1972·Granted May 25, 1976·19 cites·5 claims
- 0229US3946568AOffshore oil production platformHEIEN SIGURD·Filed 1975·Granted Mar 30, 1976·5 cites·6 claims
- 0326US4000713ACombined mooring and transfer means for oil and other liquidHEIEN SIGURD·Filed 1975·Granted Jan 4, 1977·3 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →