Fried. Krupp Gesellschaft mit beschrankter Haftung

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6022427 Method for producing helical springsJul 20, 98Feb 08, 00[C21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5229000 Apparatus and method for the separation of a viscous mixtureExpiredMar 26, 91Jul 20, 93[B01D]
5206481 Plasma burner for transferred electric arcExpiredJul 02, 91Apr 27, 93[B23K]
5149381 Method of making a composite powder comprising nanocrystallites embedded in an amorphous phaseExpiredDec 05, 88Sep 22, 92[C22C]
5147449 Process for production of metal-metalmetalloid powders with their articles having ultramicrocrystalline to nanocrystalline structureExpiredApr 11, 89Sep 15, 92[C22C]
5108523 Shape memory alloyExpiredJul 24, 90Apr 28, 92[C22C]
5104509 Method and apparatus for producing layers of hard carbon modificationsExpiredNov 29, 90Apr 14, 92[C23C]
5089280 Process for decaffinating green coffee beansExpiredJun 18, 87Feb 18, 92[A23F]
5074370 Dual-track chassisExpiredDec 20, 90Dec 24, 91[B62D]
5061141 Method and apparatus for producing can bodiesExpiredMar 29, 89Oct 29, 91[B21D]
5048259 Apparatus for installing or removing a lid from a standard barrelExpiredOct 23, 90Sep 17, 91[B65B]
5031732 Shock absorber for a vehicleExpiredFeb 28, 89Jul 16, 91[F16F]
5017111 Apparatus for charging a tire heating pressExpiredMay 25, 90May 21, 91[B29C]
5011594 Process for the continuous extraction of mixtures of organic substances with supercritical solventsExpiredDec 16, 88Apr 30, 91[C10G]
4993834 Spectrometer for the simultaneous measurement of intensity in various spectral regionsExpiredSep 25, 89Feb 19, 91[G01J]
4983113 Extruder head assemblyExpiredNov 13, 89Jan 08, 91[B29C]
4981510 Process and apparatus for the production of ferrochromiumExpiredAug 04, 89Jan 01, 91[C22B]
4951885 Crusher unit for use in a mobile crushing systemExpiredOct 27, 88Aug 28, 90[B02C]
4925006 Conveyor apparatus having means for a shock-free article accelerationExpiredJun 24, 88May 15, 90[B65G]
4924063 Method and apparatus for determining the position of a weld groove for laser weldingExpiredSep 08, 89May 08, 90[B23K]
4921352 Contactless optical process for identifying objectsExpiredNov 20, 87May 01, 90[G01N]

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