Inventor · disambiguated record
Roland J. Christensen
Also filed as: CHRISTENSEN ROLAND · CHRISTENSEN ROLAND J
41 granted patents·5 pending applications·1,985 citations·filing 1984–2021
99Inventor score
Files withFREEDOM INNOVATIONS LLC12CHRISTENSEN ROLAND J9ROLAND J CHRISTENSEN AS OPERAT5CHRISTENSEN JASON4ROLAND J CHRISTENSEN FAMILY LI3
Top patents by PatentIndex Score
46 records- 0194US7520904B2Prosthetic foot with an adjustable ankle and methodFREEDOM INNOVATIONS LLC·Filed 2005·Granted Apr 21, 2009·96 cites·17 claims
- 0294US5435869AMethod for manufacturing a composite crank armFiled 1993·Granted Jul 25, 1995·96 cites·13 claims
- 0392US11142020B2Reinforced thermoplastic components and method of manufacture thereofCSS Composites LLC·Filed 2020·Granted Oct 12, 2021·6 cites·24 claims
- 0491US7686848B2Prosthetic foot with energy transferFREEDOM INNOVATIONS LLC·Filed 2008·Granted Mar 30, 2010·59 cites·21 claims
- 0589US7618464B2Prosthetic foot with variable medial/lateral stiffnessFREEDOM INNOVATIONS LLC·Filed 2006·Granted Nov 17, 2009·50 cites·21 claims
- 0688US8522467B1Composite hand guard with integral railCHRISTENSEN JASON·Filed 2011·Granted Sep 3, 2013·40 cites·19 claims
- 0788US7341603B2Prosthetic foot with energy transfer including variable orificeAPPLIED COMPOSITE TECHNOLOGY I·Filed 2005·Granted Mar 11, 2008·63 cites·21 claims
- 0888US6663673B2Prosthetic foot with energy transfer medium including variable viscosity fluidCHRISTENSEN ROLAND J·Filed 2002·Granted Dec 16, 2003·138 cites·23 claims
- 0984US8034121B2Prosthetic foot with two leaf-springs joined at heel and toeFREEDOM INNOVATIONS LLC·Filed 2009·Granted Oct 11, 2011·25 cites·9 claims
- 1084US7727285B2Prosthetic foot with variable medial/lateral stiffnessFREEDOM INNOVATIONS LLC·Filed 2008·Granted Jun 1, 2010·41 cites·23 claims
- 1183US7572299B2Prosthetic foot with energy transferFREEDOM INNOVATIONS LLC·Filed 2006·Granted Aug 11, 2009·26 cites·25 claims
- 1282US8986398B2Hydraulic prosthetic ankleFREEDOM INNOVATIONS LLC·Filed 2013·Granted Mar 24, 2015·22 cites·23 claims
- 1382US8500825B2Prosthetic foot with floating forefoot keelCHRISTENSEN ROLAND J·Filed 2010·Granted Aug 6, 2013·25 cites·21 claims
- 1482US7740602B2Ankle foot orthotic braceFREEDOM INNOVATIONS LLC·Filed 2005·Granted Jun 22, 2010·23 cites·22 claims
- 1581US6966933B2Prosthetic foot with an adjustable ankle and methodROLAND J CHRISTENSEN AS OPERAT·Filed 2003·Granted Nov 22, 2005·84 cites·10 claims
- 1681US5944760AProsthetic foot with reinforcing memberROLAND J CHRISTENSEN FAMILY LI·Filed 1997·Granted Aug 31, 1999·208 cites·31 claims
- 1780US7824446B2Prosthetic foot with longer upper forefoot and shorter lower forefootFREEDOM INNOVATIONS LLC·Filed 2007·Granted Nov 2, 2010·29 cites·19 claims
- 1880US5692334APrimarily independent composite/metallic gun barrelROLAND J CHRISTENSEN FAMILY LI·Filed 1995·Granted Dec 2, 1997·44 cites·19 claims
- 1977US6929665B2Prosthetic foot with a resilient ankleFiled 2002·Granted Aug 16, 2005·63 cites·17 claims
- 2076US7462201B2Prosthetic foot with an adjustable ankle and methodFREEDOM INNOVATIONS LLC·Filed 2004·Granted Dec 9, 2008·58 cites·23 claims
- 2176US7172630B2Prosthetic foot with camROLAND J CHRISTENSEN AS OPERAT·Filed 2004·Granted Feb 6, 2007·62 cites·18 claims
- 2276US5915937APrimarily independent composite/metallic gun barrelROLAND J CHRISTENSEN FAMILY LI·Filed 1997·Granted Jun 29, 1999·38 cites·9 claims
- 2375US7794506B2Multi-axial prosthetic ankleFREEDOM INNOVATIONS LLC·Filed 2008·Granted Sep 14, 2010·11 cites·17 claims
- 2475US7547371B2Composite architectural columnCHRISTENSEN JASON·Filed 2005·Granted Jun 16, 2009·5 cites·16 claims
- 2574US6875242B2Prosthetic foot with energy transfer medium including variable viscosity fluidROLAND J CHRISTENSEN AS OPERAT·Filed 2003·Granted Apr 5, 2005·44 cites·11 claims
- 2673US6702858B2Liner for prosthetic socket with variable viscosity fluidCHRISTENSEN ROLAND J·Filed 2002·Granted Mar 9, 2004·51 cites·26 claims
- 2773US6241776B1Prosthetic foot with reinforcing memberCHRISTENSEN ROLAND·Filed 1999·Granted Jun 5, 2001·144 cites·27 claims
- 2871US5804756AComposite/metallic gun barrel having matched coefficients of thermal expansionRJC DEV L C·Filed 1995·Granted Sep 8, 1998·42 cites·18 claims
- 2970US7419509B2Prosthetic foot with a resilient ankleFREEDOM INNOVATIONS LLC·Filed 2004·Granted Sep 2, 2008·38 cites·18 claims
- 3068US8677670B2Segmented composite barrel for weaponCHRISTENSEN JASON·Filed 2011·Granted Mar 25, 2014·11 cites·20 claims
- 3168US6805717B2Energy-storing prosthetic foot with elongated forefootROLAND J CHRISTENSEN AS OPERAT·Filed 2002·Granted Oct 19, 2004·34 cites·26 claims
- 3267US5657568AComposite/metallic gun barrel having a differing, restrictive coefficient of thermal expansionCHRISTENSEN ROLAND J·Filed 1995·Granted Aug 19, 1997·33 cites·17 claims
- 3366US12291057B2Methods of manufacture for reinforced thermoplastic componentsCSS Composites LLC·Filed 2021·Granted May 6, 2025·0 cites·20 claims
- 3465US6911052B2Prosthetic foot with oblique attachmentROLAND J CHRISTENSEN AS OPERAT·Filed 2002·Granted Jun 28, 2005·25 cites·14 claims
- 3565US6197068B1Prosthetic foot simulating toe rotationCHRISTENSEN ROLAND J·Filed 1998·Granted Mar 6, 2001·95 cites·17 claims
- 3657US6120547AEnhanced prosthetic foot structure with ankle reinforcementCHRISTENSEN ROLAND J·Filed 1998·Granted Sep 19, 2000·65 cites·32 claims
- 3752US2006236649A1Architectural capital having an astragal formed thereonCHRISTENSEN JASON·Filed 2005·Application pending·0 cites
- 3851US2006241783A1Variable resistance cellCHRISTENSEN ROLAND J·Filed 2006·Application pending·0 cites
- 3947US5360394ARigid joint support brace sizing means and methodCHRISTENSEN ROLAND J·Filed 1993·Granted Nov 1, 1994·41 cites·18 claims
- 4045US2005203640A1Prosthetic foot with a resilient ankleFiled 2005·Application pending·0 cites
- 4145US2005216098A1Variable resistance cellROLAND J CHRISTENSEN·Filed 2005·Application pending·0 cites
- 4244US4776996AProcess and apparatus for forming hollow structures from powdered thermoplastic materialsFIBER TECHNOLOGY CORP·Filed 1984·Granted Oct 11, 1988·8 cites·3 claims
- 4342US5368358AComposite spring support for bicycle seatsFiled 1993·Granted Nov 29, 1994·15 cites·22 claims
- 4441US2012179274A1Bifurcated, multi-purpose prosthetic footCHRISTENSEN ROLAND J·Filed 2011·Application pending·0 cites
- 4536US5286250AKnee joint hinge for braceMEYERS ANDREW H·Filed 1992·Granted Feb 15, 1994·25 cites·19 claims
- 4628US4934917AApparatus for forming hollow structures from powdered thermoplastic materialsFIBER TECHNOLOGY CORP·Filed 1988·Granted Jun 19, 1990·2 cites·5 claims
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