Individual holder
KELLEY JAY H
US·3 granted patents·42 citations·filing 1978–1981
Individually held — no corporate assignee on record.
Technology mixE21D3
Top patents by PatentIndex Score
3 records- 0181US4349300ASystemic roof supportKELLEY JAY H·Filed 1980·Granted Sep 14, 1982·29 cites·17 claims
- 0253US4480946AGob canopy for a mine roof supportKELLEY JAY H·Filed 1981·Granted Nov 6, 1984·9 cites·10 claims
- 0338US4146349AMine roof support method and apparatusKELLEY JAY H·Filed 1978·Granted Mar 27, 1979·4 cites·9 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →