LANGENSTEIN & SCHEMANN GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 551
 
  
 
B21J FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURNACES 515
 
  
 
B30B PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR 220
 
  
 
B21B ROLLING OF METAL 131
 
  
 
E02D FOUNDATIONS; EXCAVATIONS; EMBANKMENTS 122

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9889621 Press and method for pressing workpiecesFeb 02, 12Feb 13, 18[B21J, B30B]
9457393 Forming machine for forging, in particular, stretch-forging, workpiecesOct 05, 10Oct 04, 16[B21J]
9180642 Machine bed, method for the operation of a forming machine and forming installationJul 24, 12Nov 10, 15[B23Q, B21J, B30B, E02D]
7469568 Device for handling a workpiece during a shaping processMay 08, 04Dec 30, 08[B21D]
7444850 Method and device for shaping workpiecesMay 28, 04Nov 04, 08[B21D]
7415856 Method and device for shaping and then lifting a workpieceMay 28, 04Aug 26, 08[B21J]
7406853 Rolling machine and method thereofAug 08, 06Aug 05, 08[B21J]
7350389 Method and device for reshaping a work piece with automatic handlingMay 28, 04Apr 01, 08[B21D]
7278288 Method and device for transferring a workpieceJul 21, 05Oct 09, 07[B21D]
7225656 Process for forming a workpiece and rolling machineMar 04, 04Jun 05, 07[B21D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0110,009 METHOD FOR SHAPING A WORK PIECE AND SHAPING DEVICEAbandonedOct 29, 07May 15, 08[B23P]
7243522 Method and device for transferring a workpieceWithdrawnJul 21, 05Jul 17, 07[B21D]
2007/0119,223 Apparatus For Holding At Least Two Rolls Of A Rolling Machine, And Rolling MachineAbandonedNov 24, 06May 31, 07[B21B]
2006/0117,542 Method for shaping a work piece and shaping deviceAbandonedJan 19, 06Jun 08, 06[B23Q]
5301528 Device for manufacturing toothed pulleysExpiredOct 13, 92Apr 12, 94[B21D]
4831861 Hydraulic cold extrusion pressExpiredFeb 11, 88May 23, 89[H21J]
4286454 Apparatus for forging shaft flangesExpiredJul 20, 79Sep 01, 81[B21D]

Top Inventors for This Owner

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