Individual holder
RUHLE JAMES L
8 granted patents·292 citations·filing 1984–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
8 records- 0185US4661052AReciprocating down-hole sand pumpRUHLE JAMES L·Filed 1984·Granted Apr 28, 1987·43 cites·1 claims
- 0280US4825963AHigh-pressure waterjet/abrasive particle-jet coring method and apparatusRUHLE JAMES L·Filed 1988·Granted May 2, 1989·67 cites·2 claims
- 0366US4566485AFree-floating neutrally-buoyant reciprocating pump valve for abrasive fluidsRUHLE JAMES L·Filed 1984·Granted Jan 28, 1986·23 cites·1 claims
- 0465US4548428AAnti back-out steel coupling system for nonmetallic composite pipeRUHLE JAMES L·Filed 1984·Granted Oct 22, 1985·32 cites·1 claims
- 0563US5301759AMethod and apparatus for core-sampling subsurface rock formationsRUHLE JAMES L·Filed 1992·Granted Apr 12, 1994·44 cites·2 claims
- 0662US4679636AMethod and apparatus for coring rockRUHLE JAMES L·Filed 1986·Granted Jul 14, 1987·35 cites·4 claims
- 0757US4613003AApparatus for excavating bore holes in rockRUHLE JAMES L·Filed 1984·Granted Sep 23, 1986·24 cites·1 claims
- 0856US4616855AThreadless nonrotating steel coupling systemRUHLE JAMES L·Filed 1984·Granted Oct 14, 1986·24 cites·1 claims
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