Assignee
SKELLY MICHAEL
7 granted patents·246 citations·filing 1978–1989
Top patents by PatentIndex Score
7 records- 0193US4832552AMethod and apparatus for rotary power driven swivel drillingSKELLY MICHAEL·Filed 1986·Granted May 23, 1989·160 cites·4 claims
- 0271US4890681AMethod and apparatus for rotary power driven swivel drillingSKELLY MICHAEL·Filed 1989·Granted Jan 2, 1990·45 cites·4 claims
- 0354US4219049AMultiple flow selection valveSKELLY MICHAEL·Filed 1978·Granted Aug 26, 1980·12 cites·6 claims
- 0443US4610139AHydraulic speed control and braking apparatus for draw worksSKELLY MICHAEL·Filed 1985·Granted Sep 9, 1986·9 cites·15 claims
- 0539US4488576ADirectional flow control valveSKELLY MICHAEL·Filed 1981·Granted Dec 18, 1984·7 cites·1 claims
- 0638US4448215AMultiple flow control valveSKELLY MICHAEL·Filed 1981·Granted May 15, 1984·8 cites·8 claims
- 0737US4330008AMultiple flow and directional control valveSKELLY MICHAEL·Filed 1979·Granted May 18, 1982·5 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →