LUDWIG EHRHARDT GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B23Q DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING 337
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 247
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B23B TURNING; BORING 151
 
  
 
B25B TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING143
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 144
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 186

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0136,551 CLAMPING BUSHING AND CLAMPING DEVICEMar 18, 15May 18, 17[B23Q, B23B]
2017/0036,260 COUPLING SYSTEMDec 01, 14Feb 09, 17[F16B, B21D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9279434 Pressure medium system, in particular hydraulic systemJun 20, 12Mar 08, 16[F15B]
9281775 Clamping device with an electric motorSep 19, 12Mar 08, 16[B25B, H02P]
8220114 Pull-down fastening device for fastening objects having boresAug 11, 08Jul 17, 12[B23Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0306,717 ROTARY MODULEAbandonedSep 04, 13Oct 29, 15[B23Q]
7234704 Wiping and/or sealing element as well as process for sealing a piston and clamping and/or support elementExpiredFeb 08, 05Jun 26, 07[B60T]

Top Inventors for This Owner

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