Ipsen Industries International, Gesellschaft mit beschrankter Haftung

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5741371 Method and device for controlling the CO contents of a furnace atmosphere for carburization and carbonitriding of metallic work piecesApr 22, 96Apr 21, 98[C23C]
5251231 Vacuum furnaceNov 26, 91Oct 05, 93[H05B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5722825 Device for heat-treating metallic work pieces in a vacuumExpiredMar 29, 96Mar 03, 98[F27B]
5717186 Method and device for controlling the electric current density across a workpiece during heat treatment in a plasmaExpiredJun 13, 96Feb 10, 98[B23K]
5417567 Holder means for the partial thermal treatment of workpiecesExpiredDec 03, 93May 23, 95[F27B]
5352344 Method and apparatus for measuring the oxygen potential of a heat-treatment furnanceExpiredDec 08, 92Oct 04, 94[G01N]
5052923 Oven for partial heat treatment of toolsExpiredOct 12, 90Oct 01, 91[F27B, C21D]
4970372 Furnace for the thermal treatment of iron and steel componentsExpiredMay 31, 89Nov 13, 90[H05B, F27D]
4881982 Method for gaseous carburization of steelExpiredApr 25, 88Nov 21, 89[C23C]
4622006 Method and apparatus for heat treating metallic workpieces using a continuous-heating furnace or gravity-discharge furnaceExpiredJul 19, 85Nov 11, 86[F27B, F27D, C21D]
4610435 Industrial furnace for the thermal treatment of metal workpiecesExpiredDec 21, 84Sep 09, 86[C21D]
4587458 Controlling current densityExpiredJul 11, 84May 06, 86[H01J, G01N]
4372790 Method and apparatus for the control of the carbon level of a gas mixture reacting in a furnace chamberExpiredMar 19, 79Feb 08, 83[C21D]
4368037 Conveyor arrangement for a continuous ovenExpiredMay 06, 81Jan 11, 83[F27D]
4304549 Recuperator burner for industrial furnacesExpiredAug 16, 79Dec 08, 81[F23D]
4278421 Industrial furnaces for the heat treatment of metallic workpiecesExpiredOct 15, 79Jul 14, 81[F27B]
4221561 Aluminum soldering furnaceExpiredOct 06, 78Sep 09, 80[F27B]
4205935 Continuous heating furnace for the heat treatment of small partsExpiredApr 18, 78Jun 03, 80[F27D]
4201600 Method for the gas carburization of workpieces made of steelExpiredSep 18, 78May 06, 80[C21D]

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