Inventor · disambiguated record
Gerold Goertzen
Also filed as: GOERTZEN GEROLD · GOERTZEN GEROLD G
37 granted patents·7 pending applications·1,781 citations·filing 1979–2019
98Inventor score
Top patents by PatentIndex Score
44 records- 0199US6554086B1Obstacle traversing wheelchairINVACARE CORP·Filed 2000·Granted Apr 29, 2003·191 cites·30 claims
- 0299US6302107B1Apparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilizationINVACARE CORP·Filed 1998·Granted Oct 16, 2001·163 cites·22 claims
- 0399US5988165AApparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilizationINVACARE CORP·Filed 1997·Granted Nov 23, 1999·203 cites·26 claims
- 0498US7597163B2Obstacle traversing wheelchairINVACARE CORP·Filed 2006·Granted Oct 6, 2009·55 cites·34 claims
- 0597US8172016B2Obstacle traversing wheelchairGOERTZEN GEROLD·Filed 2009·Granted May 8, 2012·63 cites·27 claims
- 0697US6935448B2Obstacle traversing wheelchairINVACARE CORP·Filed 2003·Granted Aug 30, 2005·70 cites·12 claims
- 0797US6923280B2Obstacle traversing wheelchairINVACARE CORP·Filed 2003·Granted Aug 2, 2005·62 cites·22 claims
- 0896US9987177B2Obstacle traversing wheelchairINVACARE CORP·Filed 2015·Granted Jun 5, 2018·16 cites·13 claims
- 0996US8062003B2System and method for providing oxygenGOERTZEN GEROLD·Filed 2005·Granted Nov 22, 2011·55 cites·22 claims
- 1095US8123497B2Apparatus for compressing and storing oxygen enriched gasRICHEY II JOSEPH B·Filed 2007·Granted Feb 28, 2012·30 cites·9 claims
- 1195US5575348APowered wheelchair with adjustable center of gravity and independent suspensionINVACARE CORP·Filed 1994·Granted Nov 19, 1996·158 cites·22 claims
- 1294US9925100B2Suspension for wheeled vehiclesINVACARE CORP·Filed 2016·Granted Mar 27, 2018·11 cites·7 claims
- 1394US9364377B2Suspension for wheeled vehiclesINVACARE CORP·Filed 2014·Granted Jun 14, 2016·20 cites·4 claims
- 1494US7219755B2Obstacle traversing wheelchairINVACRE CORP·Filed 2005·Granted May 22, 2007·61 cites·28 claims
- 1593US10512572B2Suspension for wheeled vehiclesINVACARE CORP·Filed 2018·Granted Dec 24, 2019·10 cites·10 claims
- 1693US8833774B2Suspension for wheeled vehiclesINVACARE CORP·Filed 2013·Granted Sep 16, 2014·20 cites·20 claims
- 1792US6889726B2Method and apparatus for filling portable high pressure cylinders with respiratory oxygenINVACARE CORP·Filed 2002·Granted May 10, 2005·48 cites·23 claims
- 1891US5853059APowered wheelchair with adjustable center of gravity and independent suspensionINVACARE CORP·Filed 1996·Granted Dec 29, 1998·115 cites·23 claims
- 1991US4392538AAdjustable handle assembly for walk-behind garden implementROPER CORP·Filed 1981·Granted Jul 12, 1983·50 cites·12 claims
- 2089US9624918B2Pumping deviceINVACARE CORP·Filed 2013·Granted Apr 18, 2017·8 cites·7 claims
- 2188US9149398B2Obstacle traversing wheelchairINVACARE CORP·Filed 2014·Granted Oct 6, 2015·10 cites·9 claims
- 2288US8636089B2Obstacle traversing wheelchairGOERTZEN GEROLD·Filed 2012·Granted Jan 28, 2014·11 cites·21 claims
- 2388US8534679B2Suspension for wheeled vehiclesGOERTZEN GEROLD·Filed 2006·Granted Sep 17, 2013·24 cites·40 claims
- 2485US11213441B2Suspension for wheeled vehiclesINVACARE CORP·Filed 2019·Granted Jan 4, 2022·5 cites·20 claims
- 2584US7694990B2Anti-tip wheelchairINVACARE CORP·Filed 2005·Granted Apr 13, 2010·32 cites·26 claims
- 2678US7302716B2Adjustable bedINVACARE CORP·Filed 2005·Granted Dec 4, 2007·17 cites·18 claims
- 2776US6997082B2Adjustable bedINVACARE INC·Filed 2003·Granted Feb 14, 2006·20 cites·23 claims
- 2875US6357776B1Constant center of gravity tiltable chair of a wheelchairINVACARE CORP·Filed 1998·Granted Mar 19, 2002·53 cites·34 claims
- 2975US5522734AApparatus for interconnecting wheelchair batteriesINVACARE CORP·Filed 1994·Granted Jun 4, 1996·51 cites·19 claims
- 3073US5971482AConstant center of gravity tiltable chair of a wheelchairINVACARE CORP·Filed 1997·Granted Oct 26, 1999·45 cites·10 claims
- 3170US7178563B2Method and apparatus for filling portable high pressure cylinders with respiratory oxygenINVACARE CORP·Filed 2004·Granted Feb 20, 2007·15 cites·15 claims
- 3270US4247242AQuick attachment deviceFARMHAND INC·Filed 1979·Granted Jan 27, 1981·18 cites·10 claims
- 3367US6983495B2Adjustable height bedINVACARE CORP·Filed 2002·Granted Jan 10, 2006·24 cites·27 claims
- 3463US7419182B2Mobility aidINVACARE CORP·Filed 2006·Granted Sep 2, 2008·8 cites·18 claims
- 3556US4402365AGarden tiller with vegetation sloughing meansROPER CORP·Filed 1981·Granted Sep 6, 1983·12 cites·14 claims
- 3655US4372397AGarden tiller with extended tine shieldROPER CORP·Filed 1981·Granted Feb 8, 1983·13 cites·12 claims
- 3754US4706761ATilling machine with pivotal bi-directional operative tinesROPER CORP·Filed 1985·Granted Nov 17, 1987·14 cites·25 claims
- 3851US2012152248A1Apparatus for compressing and storing oxygen enriched gasRICHEY II JOSEPH B·Filed 2012·Application pending·0 cites
- 3946US2005136299A1Oxygen supply systemFiled 2004·Application pending·0 cites
- 4045US2012299260A1Suspension for wheeled vehiclesGOERTZEN GEROLD·Filed 2012·Application pending·0 cites
- 4140US2011038740A1CompressorINVACARE CORP·Filed 2010·Application pending·0 cites
- 4240US2005183900A1WheelchairFiled 2005·Application pending·0 cites
- 4339US2006021806A1Obstacle traversing wheelchairINVACARE CORP·Filed 2005·Application pending·0 cites
- 4438US2014202461A1Oxygen compressor with boost stageGOERTZEN GEROLD·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →