KORUND LAUFENBURG GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 464
 
  
 
B24D TOOLS FOR GRINDING, BUFFING, OR SHARPENING 129
 
  
 
B28B SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 127

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6284694 Moulded spherical ceramic body, production process and useNov 23, 98Sep 04, 01[C04B]
5665127 Process for producing sintered .alpha.-Al.sub.2 O.sub.3 bodies and their useJan 24, 96Sep 09, 97[C04B]
5525135 Abrasive material based on zirconium corundum a process for its production and its useMay 17, 95Jun 11, 96[C04B]
5478510 Process for producing homogeneous structure abrasivesOct 18, 93Dec 26, 95[B28B, C04B]
5194073 Sintered composite abrasive materials, a process for its production and its useNov 08, 91Mar 16, 93[B24D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5756409 Silicon-carbide sintered abrasive grain and process for its productionExpiredOct 21, 96May 26, 98[C04B]
5259147 Granular abrasive materialExpiredFeb 18, 93Nov 09, 93[B24D]
5256611 Colored corundum composite and processes for its production and its useExpiredJul 08, 92Oct 26, 93[C04B]
5236471 Process for the production of sintered material based on .alpha.-aluminum oxide, especially for abrasivesExpiredJun 17, 92Aug 17, 93[B24D]
5042991 Hydrophobically coated abrasive grainExpiredMar 12, 90Aug 27, 91[B24B]
5026404 AbrasivesExpiredDec 07, 89Jun 25, 91[B24B]
5009674 AbrasivesExpiredNov 02, 89Apr 23, 91[B24B]

Top Inventors for This Owner

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