Assignee
JOHNSON SHEET METAL WORKS CO
3 granted patents·83 citations·filing 1975–1978
Top patents by PatentIndex Score
3 records- 0179USD257393SMetal doorJOHNSON SHEET METAL WORKS CO·Filed 1978·Granted Oct 14, 1980·18 cites·1 claims
- 0278US3987588AMetal door assembly and method of productionJOHNSON SHEET METAL WORKS CO·Filed 1975·Granted Oct 26, 1976·44 cites·17 claims
- 0354US3981054ABurial casket with improved sealing systemJOHNSON SHEET METAL WORKS CO·Filed 1975·Granted Sep 21, 1976·21 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →