Individual holder
JOHNSON CALVIN R
3 granted patents·19 citations·filing 1975–1976
Individually held — no corporate assignee on record.
Technology mixE04G3
Top patents by PatentIndex Score
3 records- 0147US4054259AWaler-stiffback bracketJOHNSON CALVIN R·Filed 1976·Granted Oct 18, 1977·12 cites·21 claims
- 0229US4003546AConvertible waler braceJOHNSON CALVIN R·Filed 1975·Granted Jan 18, 1977·4 cites·8 claims
- 0325US3998424ATie rod with expandable locking coneJOHNSON CALVIN R·Filed 1975·Granted Dec 21, 1976·3 cites·7 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →