Herrenknecht Tunneling Systems

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 221
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8714053 Cutter insert gum modification method and apparatusOct 16, 12May 06, 14[B21K, B23K, B24D]
7401537 Cutter insert gum modification method and apparatusMar 23, 05Jul 22, 08[B21K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0039,739 CUTTER RINGS AND METHOD OF MANUFACTUREAbandonedAug 10, 11Feb 16, 12[B22F]
2009/0322,143 CUTTER INSERT GUM MODIFICATION METHOD AND APPARATUSAbandonedJul 22, 08Dec 31, 09[E21C]

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