Individual holder
JOHNSON HAROLD R
4 granted patents·84 citations·filing 1978–1991
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0170US4367631AAir conditioning apparatus and methods using underground ductJOHNSON HAROLD R·Filed 1980·Granted Jan 11, 1983·31 cites·9 claims
- 0266US4667874AEnergy saving furnace controllerJOHNSON HAROLD R·Filed 1985·Granted May 26, 1987·27 cites·12 claims
- 0358US5127587AKitchen composterJOHNSON HAROLD R·Filed 1991·Granted Jul 7, 1992·23 cites·11 claims
- 0431US4160539AHand operated jack for a multipurpose jig apparatus of the type including a length of pipe and a plurality of releasable, pipe-gripping tail stopsJOHNSON HAROLD R·Filed 1978·Granted Jul 10, 1979·3 cites·13 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →