C.D. WALZHOLZ GMBH

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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 837
 
  
 
B21B ROLLING OF METAL 230
 
  
 
C22C ALLOYS 270
 
  
 
A62C FIRE-FIGHTING 126
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 186
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 148
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES178
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9290832 Micro-alloyed carbon steel as a texture-rolled strip steel, in particular for spring elementsFeb 25, 10Mar 22, 16[F16F, C21D, C22C]
8652396 Method and device for the continuous creation of a bainite structure in a carbon steel, particularly in a strip steelApr 18, 11Feb 18, 14[C21D]
8652396 Method and device for the continuous creation of a bainite structure in a carbon steel, particularly in a strip steelApr 18, 11Feb 18, 14[C21D]
7972452 Method and device for the continuous creation of a bainite structure in a carbon steel, particularly in a strip steelOct 31, 06Jul 05, 11[C21D]
7972452 Method and device for the continuous creation of a bainite structure in a carbon steel, particularly in a strip steelOct 31, 06Jul 05, 11[C21D]
6874344 Cold rolling methodMay 06, 02Apr 05, 05[B21B]
5921487 Device for winding electric tape to give a coilJan 16, 98Jul 13, 99[B65H]
5830535 Process for producing a ski edgeJan 10, 97Nov 03, 98[B05D]
5451276 Process for producing a ski edgeMay 10, 94Sep 19, 95[A62C, C21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0006,350 Method and Device for the Deformation of Semi-Finished Material in Wire and Rod Form, Close to the Final Dimensions, as Well as a Flat Profile Produced AccordinglyAbandonedSep 13, 05Jan 10, 08[C21D]
7004493 Ski edge profileExpiredJun 12, 02Feb 28, 06[A63C]
6953627 Method for the production of thin-walled steel components and components produced therefromExpiredJan 05, 01Oct 11, 05[C21D, B32B]

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