BWG BERGWERK-UND WALZWERK-MASCHINENBAU 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 1145
 
  
 
B21B ROLLING OF METAL 725
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS396
 
  
 
G01L MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 353
 
  
 
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 243
 
  
 
B05C APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 144
 
  
 
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
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B26D CUTTING; DETAILS COMMON TO MACHINES FOR SEVERING, e.g. BY CUTTING, PERFORATING, PUNCHING, STAMPING-OUT 136
 
  
 
B27G ACCESSORY MACHINES OR APPARATUS; TOOLS 113

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0136,717 METHOD OF CONNECTING METAL STRIPSSep 11, 15May 19, 16[B21D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9784574 Roll for measuring strip flatnessOct 14, 15Oct 10, 17[G01B, B21B]
9604270 Method and apparatus for stretch-leveling metal stripJun 06, 14Mar 28, 17[B21D, B21B]
9174257 Stretch-bending straightenerJun 22, 11Nov 03, 15[B21D]
8365565 System for leveling metal stripFeb 05, 08Feb 05, 13[B21D, B21B]
8291738 Method of and apparatus for leveling stripMay 14, 09Oct 23, 12[B21D]
8132475 Method of and apparatus for measuring strip planarityJun 29, 09Mar 13, 12[G01L]
8109428 Method of and apparatus for splicing metal stripsDec 22, 09Feb 07, 12[B23K]
7954351 Stretch-leveling metal stripFeb 05, 08Jun 07, 11[B21D, B21B]
7908948 Method of trimming strip, especially hot roll metal stripMar 04, 04Mar 22, 11[B26D]
7909158 Walking-beam conveyorDec 12, 07Mar 22, 11[B65G]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0121,678 METHOD AND DEVICE FOR CONNECTING METAL STRIPSAbandonedAug 22, 13May 07, 15[B23P, B21D]
2015/0052,717 METHOD AND DEVICE FOR DESCALING A SCALED METAL STRIPAbandonedApr 04, 13Feb 26, 15[B21B]
2012/0174,643 METHOD AND DEVICE FOR CONTINUOUSLY STRETCH-BEND-LEVELING METAL STRIPSAbandonedSep 10, 10Jul 12, 12[B21D]
2007/0029,039 Method for taping a strip connection and adhesive tape applicatorAbandonedJul 20, 06Feb 08, 07[B29C, B32B]
7143657 Planarity-measuring roller for steel stripExpiredJan 18, 05Dec 05, 06[G01L]
6691541 Stretch leveler for steel and other metal stripExpiredMar 26, 02Feb 17, 04[B21D]
6644159 Trimmer for strip and scrap cutterExpiredApr 13, 01Nov 11, 03[B26D]
2003/0066,400 Method and apparatus for the trimming of strip, especially hot roll metal stripAbandonedFeb 01, 02Apr 10, 03[B26D]
2002/0174,699 Method of and apparatus for eliminating crossbow in metal stripAbandonedApr 24, 02Nov 28, 02[B21D]
6448764 Method of and apparatus for contactless planarity measurements on ferromagnetic metal stripExpiredJan 11, 01Sep 10, 02[G01B, G01R]
6401582 Apparatus for removing binder straps from, for example, coils bound therebyExpiredDec 21, 99Jun 11, 02[B26D, B69B]
6357273 Method of reducing waste in the rolling of strip segments interconnected by weld seamsExpiredOct 17, 00Mar 19, 02[B21B]
6327883 Method of flattening metal stripExpiredJul 05, 00Dec 11, 01[B21D]
6309472 Method of and apparatus for cleaning strip line rollsExpiredOct 06, 99Oct 30, 01[B08B]
6164104 Method of and apparatus for measuring planarity of metal stripExpiredSep 23, 99Dec 26, 00[B21B]
6089063 Method of and apparatus for producing rolled or cast metal strip with descaled surfacesExpiredOct 06, 98Jul 18, 00[B21C, B21B]
5759307 Method of producing a cold-rolled strip in one passExpiredAug 30, 96Jun 02, 98[C21D]
5687595 Method of and apparatus for correcting curvature of rolled metal stripExpiredJan 24, 96Nov 18, 97[B21D]
5579658 Method of and apparatus for producing large metal platesExpiredSep 28, 95Dec 03, 96[B21D]
5554235 Method of and process for cold-rolling of stainless-steel and titanium-alloy stripExpiredNov 02, 94Sep 10, 96[C21D]

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