Assignee
AVA INT CORP
US·34 granted patents·1,346 citations·filing 1980–1994
Top patents by PatentIndex Score
34 records- 0199US5195721AFail safe valve actuatorAVA INT CORP·Filed 1991·Granted Mar 23, 1993·188 cites·39 claims
- 0295US5295907ARorque limiting deviceAVA INT CORP·Filed 1992·Granted Mar 22, 1994·62 cites·2 claims
- 0393US4852648AWell installation in which electrical current is supplied for a source at the wellhead to an electrically responsive device located a substantial distance below the wellheadAVA INT CORP·Filed 1987·Granted Aug 1, 1989·136 cites·27 claims
- 0491US4440223AWell slip assembliesAVA INT CORP·Filed 1982·Granted Apr 3, 1984·90 cites·3 claims
- 0590US5513703AMethods and apparatus for perforating and treating production zones and otherwise performing related activities within a wellAVA INT CORP·Filed 1994·Granted May 7, 1996·116 cites·33 claims
- 0680US4783046APneumatic valve actuatorsAVA INT CORP·Filed 1987·Granted Nov 8, 1988·35 cites·10 claims
- 0776US4641707AWell apparatusAVA INT CORP·Filed 1984·Granted Feb 10, 1987·44 cites·21 claims
- 0873US4591197AWire line running and/or pulling toolAVA INT CORP·Filed 1985·Granted May 27, 1986·46 cites·12 claims
- 0972US4794989AWell completion method and apparatusAVA INT CORP·Filed 1985·Granted Jan 3, 1989·43 cites·6 claims
- 1071US5137090ASubsurface tubing safety valveAVA INT CORP·Filed 1991·Granted Aug 11, 1992·63 cites·11 claims
- 1171US4540047AFlow controlling apparatusAVA INT CORP·Filed 1983·Granted Sep 10, 1985·35 cites·56 claims
- 1270US4768594AValvesAVA INT CORP·Filed 1986·Granted Sep 6, 1988·39 cites·66 claims
- 1369US4325431AFlow controlling apparatusAVA INT CORP·Filed 1980·Granted Apr 20, 1982·33 cites·16 claims
- 1465US4519575AValves and valve actuatorsAVA INT CORP·Filed 1984·Granted May 28, 1985·31 cites·15 claims
- 1562US4505332AWell packersAVA INT CORP·Filed 1982·Granted Mar 19, 1985·26 cites·26 claims
- 1661US4477104AReleasable latching apparatusAVA INT CORP·Filed 1981·Granted Oct 16, 1984·26 cites·28 claims
- 1760US5358053ASubsurface safety valveAVA INT CORP·Filed 1993·Granted Oct 25, 1994·32 cites·4 claims
- 1860US5263847ASubsurface tubing safety valveAVA INT CORP·Filed 1992·Granted Nov 23, 1993·37 cites·4 claims
- 1958US5251702ASurface controlled subsurface safety valveAVA INT CORP·Filed 1991·Granted Oct 12, 1993·34 cites·6 claims
- 2057US4691893AFail safe gate valves and actuators thereforAVA INT CORP·Filed 1987·Granted Sep 8, 1987·18 cites·80 claims
- 2156US5413173AWell apparatus including a tool for use in shifting a sleeve within a well conduitAVA INT CORP·Filed 1993·Granted May 9, 1995·26 cites·15 claims
- 2255US4776397ATool for lowering into centered position within a well boreAVA INT CORP·Filed 1986·Granted Oct 11, 1988·24 cites·8 claims
- 2354US4505331ASide pocket mandrelAVA INT CORP·Filed 1982·Granted Mar 19, 1985·19 cites·5 claims
- 2453US4582135AWell packersAVA INT CORP·Filed 1983·Granted Apr 15, 1986·19 cites·11 claims
- 2553US4522259AWell apparatusAVA INT CORP·Filed 1983·Granted Jun 11, 1985·18 cites·55 claims
- 2652US4527631ASubsurface safety valveAVA INT CORP·Filed 1983·Granted Jul 9, 1985·19 cites·5 claims
- 2750US4434847AFlow controlling apparatusAVA INT CORP·Filed 1982·Granted Mar 6, 1984·17 cites·25 claims
- 2842US5193615AApparatus for use in controlling flow through a tubing string suspended and packed off within well bore as well as within the annulus between the tubing string and well bore above and below the packerAVA INT CORP·Filed 1991·Granted Mar 16, 1993·15 cites·27 claims
- 2939US4745971AMultiple string well packerAVA INT CORP·Filed 1985·Granted May 24, 1988·11 cites·22 claims
- 3038US4726421ALatching devicesAVA INT CORP·Filed 1987·Granted Feb 23, 1988·13 cites·1 claims
- 3138US4628998AWell apparatusAVA INT CORP·Filed 1985·Granted Dec 16, 1986·10 cites·29 claims
- 3236US4640350AKickover toolAVA INT CORP·Filed 1985·Granted Feb 3, 1987·11 cites·3 claims
- 3334US4398600ASystems for landing wire line tools at selected levels within a well tubing stringAVA INT CORP·Filed 1980·Granted Aug 16, 1983·7 cites·2 claims
- 3431US4605064AWell apparatusAVA INT CORP·Filed 1985·Granted Aug 12, 1986·3 cites·42 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →