Inventor · disambiguated record
James R. Powell
Also filed as: POWELL JAMES R · POWELL JAMES RUSSELL
27 granted patents·1 pending application·926 citations·filing 1975–2016
97Inventor score
Files withUS ENERGY6POWELL JAMES R5POWELL JAMES RUSSELL2ROSEMOUNT AEROSPACE INC2GRUMMAN AEROSPACE CORP1
Top patents by PatentIndex Score
28 records- 0193US4803974AOral lavage apparatusPOWELL JAMES R·Filed 1987·Granted Feb 14, 1989·166 cites·11 claims
- 0292US4085590AHydride compressorUS ENERGY·Filed 1976·Granted Apr 25, 1978·80 cites·1 claims
- 0390US5086756AHand operated oral irrigation device for packaged liquidsPOWELL JAMES R·Filed 1991·Granted Feb 11, 1992·153 cites·11 claims
- 0489US5809897AElectromagnetic induction ground vehicle levitation guidewayFiled 1997·Granted Sep 22, 1998·57 cites·9 claims
- 0589US5511488AElectromagnetic induction ground vehicle levitation guidewayFiled 1994·Granted Apr 30, 1996·52 cites·59 claims
- 0688US7191710B2Electrical power storage and delivery using magnetic levitation technologyPOWELL JAMES RUSSELL·Filed 2005·Granted Mar 20, 2007·31 cites·28 claims
- 0786US4309249ANeutron source, linear-accelerator fuel enricher and regenerator and associated methodsUS ENERGY·Filed 1979·Granted Jan 5, 1982·27 cites·40 claims
- 0885US6311926B1Space tramFiled 2000·Granted Nov 6, 2001·52 cites·19 claims
- 0979US4643809AProcess for electrochemically gasifying coal using electromagnetismUS ENERGY·Filed 1985·Granted Feb 17, 1987·29 cites·13 claims
- 1078US10173791B2System and method for magnetically launching projectiles or spacecraftPOWELL JAMES R·Filed 2016·Granted Jan 8, 2019·3 cites·39 claims
- 1166US6085663ASystem and method for magnetic levitation guideway emplacement on conventional railroad line installationsFiled 1999·Granted Jul 11, 2000·28 cites·36 claims
- 1266US3969631AGas production apparatusUS ENERGY·Filed 1975·Granted Jul 13, 1976·16 cites·15 claims
- 1364US7661321B2Force sensing clevis insertROSEMOUNT AEROSPACE INC·Filed 2007·Granted Feb 16, 2010·3 cites·23 claims
- 1464US4572285AMagnetically focused liquid drop radiatorUS ENERGY·Filed 1984·Granted Feb 25, 1986·21 cites·17 claims
- 1562US6990906B2Electrical power storage and delivery using magnetic levitation technologyPOWELL JAMES RUSSELL·Filed 2002·Granted Jan 31, 2006·15 cites·12 claims
- 1661US5649489AElectromagnetic induction ground vehicle levitation guidewayFiled 1996·Granted Jul 22, 1997·33 cites·22 claims
- 1758US7026909B2Housing for temperature sensing assemblies in a thermometerROSEMOUNT AEROSPACE INC·Filed 2003·Granted Apr 11, 2006·11 cites·17 claims
- 1858US5865123AElectromagnetic induction suspension and horizontal switching system for a vehicle on a planar guidewayFiled 1997·Granted Feb 2, 1999·28 cites·36 claims
- 1958US4226369AMeans and method for the destruction of particles entrained in a gas streamUS ENERGY·Filed 1978·Granted Oct 7, 1980·19 cites·16 claims
- 2056US5669310AElectromagnetic induction suspension and horizontal switching system for a vehicle on a planar guidewayFiled 1996·Granted Sep 23, 1997·13 cites·21 claims
- 2147US5953996ASystem and method for magnetic levitation guideway emplacement on conventional railroad line installationsFiled 1998·Granted Sep 21, 1999·21 cites·34 claims
- 2246US5655458AElectromagnetic induction suspension and horizontal switching system for a vehicle on a planar guidewayFiled 1995·Granted Aug 12, 1997·17 cites·17 claims
- 2344US5503083AElectromagnetic induction suspension and horizontal switching system for a vehicle on a planar guidewayFiled 1994·Granted Apr 2, 1996·12 cites·38 claims
- 2444US5255509AParticle bed reactor-powered turbine engineGRUMMAN AEROSPACE CORP·Filed 1991·Granted Oct 26, 1993·19 cites·1 claims
- 2541US6152045AMagnetic levitation system for long distance delivery of waterFiled 1998·Granted Nov 28, 2000·16 cites·6 claims
- 2635US2010290578A1Deployable electric energy reactorRADIX POWER AND ENERGY CORP·Filed 2010·Application pending·0 cites
- 2732USD668008SDog toy ball with recessed portionsPOWELL JAMES R·Filed 2011·Granted Sep 25, 2012·1 cites·1 claims
- 2832US4370135AMethod and apparatus for making dental study modelsPOWELL JAMES R·Filed 1980·Granted Jan 25, 1983·3 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when James R. Powell files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →