Inventor · disambiguated record
Edwin Zwald
Also filed as: ZWALD EDWIN · ZWALD EDWIN A · ZWALD EDWIN A JR · ZWALD EDWIN ARNOLD
22 granted patents·7 pending applications·537 citations·filing 2002–2008
97Inventor score
Top patents by PatentIndex Score
29 records- 0197US7270188B2Radial expansion of tubular membersSHELL OIL CO·Filed 2002·Granted Sep 18, 2007·34 cites·150 claims
- 0297US7168499B2Radial expansion of tubular membersSHELL OIL CO·Filed 2004·Granted Jan 30, 2007·36 cites·23 claims
- 0395US7246667B2Radial expansion of tubular membersSHELL OIL CO·Filed 2004·Granted Jul 24, 2007·26 cites·53 claims
- 0495US7146702B2Method and apparatus for forming a mono-diameter wellbore casingSHELL OIL CO·Filed 2005·Granted Dec 12, 2006·23 cites·5 claims
- 0593US7172019B2Method and apparatus for forming a mono-diameter wellbore casingSHELL OIL CO·Filed 2005·Granted Feb 6, 2007·33 cites·7 claims
- 0689US7363691B2Method and apparatus for forming a mono-diameter wellbore casingSHELL OIL CO·Filed 2005·Granted Apr 29, 2008·23 cites·6 claims
- 0788US7357190B2Radial expansion of tubular membersSHELL OIL CO·Filed 2004·Granted Apr 15, 2008·13 cites·37 claims
- 0888US7299881B2Radial expansion of tubular membersSHELL OIL CO·Filed 2004·Granted Nov 27, 2007·12 cites·24 claims
- 0987US7100685B2Mono-diameter wellbore casingENVENTURE GLOBAL TECHNOLOGY·Filed 2003·Granted Sep 5, 2006·48 cites·21 claims
- 1083US7204007B2Method and apparatus for forming a mono-diameter wellbore casingSHELL OIL CO·Filed 2005·Granted Apr 17, 2007·14 cites·1 claims
- 1183US7201223B2Method and apparatus for forming a mono-diameter wellbore casingSHELL OIL CO·Filed 2005·Granted Apr 10, 2007·14 cites·20 claims
- 1282US7546881B2Apparatus for radially expanding and plastically deforming a tubular memberENVENTURE GLOBAL TECHNOLOGY·Filed 2006·Granted Jun 16, 2009·24 cites·17 claims
- 1382US6976541B2Liner hanger with sliding sleeve valveSHELL OIL CO·Filed 2003·Granted Dec 20, 2005·55 cites·50 claims
- 1477US7325602B2Method and apparatus for forming a mono-diameter wellbore casingSHELL OIL CO·Filed 2006·Granted Feb 5, 2008·16 cites·7 claims
- 1575US7231985B2Radial expansion of tubular membersSHELL OIL CO·Filed 2004·Granted Jun 19, 2007·42 cites·20 claims
- 1674US7275601B2Radial expansion of tubular membersSHELL OIL CO·Filed 2004·Granted Oct 2, 2007·24 cites·28 claims
- 1773US7172021B2Liner hanger with sliding sleeve valveSHELL OIL CO·Filed 2004·Granted Feb 6, 2007·36 cites·20 claims
- 1871US7308755B2Apparatus for forming a mono-diameter wellbore casingSHELL OIL CO·Filed 2005·Granted Dec 18, 2007·10 cites·11 claims
- 1968US7779923B2Methods and apparatus for anchoring and expanding tubular membersENVENTURE GLOBAL TECHNOLOGY·Filed 2008·Granted Aug 24, 2010·11 cites·14 claims
- 2068US7172024B2Mono-diameter wellbore casingSHELL OIL CO·Filed 2003·Granted Feb 6, 2007·31 cites·74 claims
- 2166US7363690B2Method and apparatus for forming a mono-diameter wellbore casingSHELL OIL CO·Filed 2005·Granted Apr 29, 2008·5 cites·6 claims
- 2258US7823659B2Apparatus and methods for drilling and lining a wellboreENVENTURE GLOBAL TECHNOLOGY·Filed 2008·Granted Nov 2, 2010·7 cites·7 claims
- 2345US2005166387A1Method and apparatus for forming a mono-diameter wellbore casingFiled 2005·Application pending·0 cites
- 2444US2008115939A1Radial Expansion of Tubular MembersSHELL OIL CO·Filed 2007·Application pending·0 cites
- 2537US2007151360A1Expandable tubularSHELL OIL CO·Filed 2006·Application pending·0 cites
- 2637US2009301733A1Expandable tubularENVENTURE GLOBAL TECHNOLOGY·Filed 2005·Application pending·0 cites
- 2735US2008142213A1Radial expansion of a wellbore casing against a formationENVENTURE GLOBAL TECHNOLOGY·Filed 2007·Application pending·0 cites
- 2835US2006283603A1Expandable tubularENVENTURE GLOBAL TECHNOLOGY·Filed 2004·Application pending·0 cites
- 2934US2007163785A1Expandable tubularENVENTURE GLOBAL TECHNOLOGY·Filed 2004·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →