Vacuumschmelze GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 2163
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 1480
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 4155
 
  
 
C22C ALLOYS 270
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 272
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 2360
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 144
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7276128 Amorphous alloys for magneto-acoustic markers in electronic article surveillance having reduced, low or zero co-content and method of annealing the sameOct 08, 03Oct 02, 07[H01F]
7088247 Amorphous alloys for magneto-acoustic markers having reduced, low or zero cobalt content, and associated article surveillance systemOct 08, 03Aug 08, 06[G08B]
7042310 High-pass branch of a frequency separating filter for ADSL systemsJun 08, 00May 09, 06[H04B]
7026938 Ferromagnetic element for use in a marker in a magnetomechanical electronic article surveillance systemApr 23, 04Apr 11, 06[G08B]
6849295 Method for producing a winding protection for tape-wound coresAug 30, 01Feb 01, 05[C23C]
6803118 Marker for use in a magnetic anti-theft security systemSep 26, 03Oct 12, 04[G08B, H01F]
6713999 Current sensor working in accordance with the compensation principleFeb 15, 02Mar 30, 04[G01R, H01F]
6668907 Casting wheel produced by centrifugal castingJan 17, 02Dec 30, 03[B22D]
6663815 Method for producing inductive componentsMar 22, 01Dec 16, 03[B29C]
6663981 Marker for use in a magnetic anti-theft security system and method for marking the markerJun 08, 99Dec 16, 03[G08B, H01F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6830634 Method and device for continuous annealing metallic ribbons with improved process efficiencyExpiredJun 11, 02Dec 14, 04[H01F, C21D]
6689490 Display element for employment in a magnetic anti-theft security systemExpiredFeb 21, 03Feb 10, 04[G08B, H01F, B32B]
6599465 Composite part and method for producing the sameExpiredDec 21, 01Jul 29, 03[B22F]
6588093 Method and device for producing bundles of sheet metal laminates for magnetic coresExpiredMar 17, 00Jul 08, 03[H01F]
6572916 Coating method for use in a process for producing high-temperature superconductive strip conductorsExpiredJan 04, 01Jun 03, 03[B05D, H01C]
6562289 Method for improving the corrosion protection of permanent magnets containing rare earth metalsExpiredFeb 19, 01May 13, 03[B22F]
6559808 Low-pass filter for a diplexerExpiredNov 14, 00May 06, 03[H01Q]
6471785 Process for producing a strip-shaped, multi-core superconductor with high-Tc superconducting material and superconductor produced by this processExpiredAug 25, 00Oct 29, 02[H01L]
6464894 Magnetic film and a method for the production thereofExpiredSep 12, 00Oct 15, 02[H01F]
6464934 Method for manufacturing a rare earth element--iron--boron permanent magnetExpiredJan 29, 01Oct 15, 02[B22C]
2002/0004,141 Magnet and process for its productionAbandonedMay 18, 01Jan 10, 02[B22F, H01F]
6120617 Method for manufacturing a magnetic pulse generatorExpiredApr 07, 94Sep 19, 00[H01F]
6118365 Pulse transformer for a u-interface operating according to the echo compensation principle, and method for the manufacture of a toroidal tape core contained in a U-interface pulse transformerExpiredMar 17, 99Sep 12, 00[H01F]
6106894 Method for improving the protection against corrosion of a surface coated with aluminumExpiredMar 06, 97Aug 22, 00[B05D]
6078172 Current-compensated current sensor for hysteresis-independent and temperature-independent current measurementExpiredMay 06, 97Jun 20, 00[G01R]
6027576 Rare earth element-iron-boron permanent magnet and method for the manufacture thereofExpiredMar 05, 99Feb 22, 00[H01F]
5844129 Method for determining the magnetic contamination of a surfaceExpiredNov 19, 96Dec 01, 98[G01N]
5751207 Annular core for a choke, in particular for radio interference suppression of semiconductor circuits by the phase control methodExpiredMar 07, 97May 12, 98[H01F]
5576921 Aggregate current transformerExpiredJul 06, 95Nov 19, 96[H01F, H02H]
5530201 Shielding for openings in a shielded housing, particularly a monitor shieldingExpiredOct 20, 94Jun 25, 96[H05K]

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