HAZEMAG & EPR GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 332
 
  
 
E21B EARTH OR ROCK DRILLING 195

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9468928 Crushing ring of a crushing rollOct 25, 13Oct 18, 16[B02C]
7896104 Device and method for explosive drillingMay 07, 08Mar 01, 11[E21B]
6092752 Rotor for impactorsMar 18, 99Jul 25, 00[B02C]
5381973 Rotor for impact crushes or hammer millsAug 26, 92Jan 17, 95[B02C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6874716 Beater bar capable of being acted upon on one side for impactor rotorsExpiredSep 28, 01Apr 05, 05[B02C]
6745966 Impact mill with pivotable impact apronExpiredMar 13, 02Jun 08, 04[B02C]
2002/0050,753 Rotor of the closed type for impactorsAbandonedSep 28, 01May 02, 02[H02K]
6129300 Blow bar for impactorsExpiredMar 18, 99Oct 10, 00[B02C]
5713527 Impact crusher with hydraulic adjustment of the crushing gap which determines the degree of communicationExpiredNov 13, 95Feb 03, 98[B02C]
5392999 Rotor for impact crushers or hammer millsExpiredFeb 28, 91Feb 28, 95[B02C]
5226604 Method of and apparatus for adjusting comminuting machinesExpiredDec 17, 91Jul 13, 93[B02C]
5221054 Rotor for use in impact crushersExpiredFeb 28, 91Jun 22, 93[B02C]

Top Inventors for This Owner

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