Assignee
HANKINS DALE
3 granted patents·77 citations·filing 1976–2018
Top patents by PatentIndex Score
3 records- 0184US4051900APropping material for hydraulic fracturingHANKINS DALE·Filed 1976·Granted Oct 4, 1977·74 cites·7 claims
- 0275US10519949B1Superimposed standing valveHANKINS DALE·Filed 2018·Granted Dec 31, 2019·2 cites·11 claims
- 0368US10132312B1Superimposed standing valveHANKINS DALE·Filed 2017·Granted Nov 20, 2018·1 cites·12 claims
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