OXFORD MAGNET TECHNOLOGY LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01V GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 377
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 282
 
  
 
A61B DIAGNOSIS; SURGERY; IDENTIFICATION 1239
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 167
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7071694 Magnet assembly of an MRI system with concentric annular ferromagnetic laminationsOct 12, 00Jul 04, 06[G01V]
6218839 Magnetic resonance imaging systemsMay 24, 99Apr 17, 01[G01V]
5736859 Cryogenic MRI magnetsNov 13, 95Apr 07, 98[G01V]
5400786 MRI magnetsJan 04, 94Mar 28, 95[A61B, G01R]
5329266 Magnet assemblyJul 17, 91Jul 12, 94[H01F]
5210512 Magnet assemblyJul 17, 91May 11, 93[H01F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7167004 Open MRI magnet assembly with paired planar driving coils having opposite current flows and a racetrack, nested, or substantially-planar multi-coil shapeExpiredOct 12, 00Jan 23, 07[G01V]
6996993 Pulse tube refrigerator systemExpiredAug 14, 03Feb 14, 06[F25B]
6950001 Superconducting open MRI magnet with transverse magnetic fieldExpiredFeb 01, 02Sep 27, 05[H01F]
6937126 Magnetic coil formerExpiredOct 12, 00Aug 30, 05[H01F]
6598404 Cooling apparatusExpiredApr 19, 01Jul 29, 03[F25B]
6566880 Stabilization of a magnetic field of a magnetic resonance imaging apparatusExpiredJun 15, 01May 20, 03[G01V]
6489873 Temperature control system for a permanent magnetic systemExpiredJun 12, 01Dec 03, 02[H01F]
6230502 Suspension systemsExpiredJan 18, 00May 15, 01[F25B, A47H]
6211676 MRI magnetsExpiredMar 11, 97Apr 03, 01[G01V]
5982260 MRI magnetsExpiredJan 16, 97Nov 09, 99[H01F]
5936851 Regulated resonant converterExpiredMar 11, 97Aug 10, 99[H02M]
5880944 Resonant convertersExpiredMar 12, 97Mar 09, 99[H02M]
5691678 ElectromagnetsExpiredJul 17, 95Nov 25, 97[H01F]
5291741 Liquid helium topping-up apparatusExpiredOct 08, 92Mar 08, 94[F17C]

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