LONE STAR INDUSTRIES, INC.

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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 167

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6740157 Method for cement clinker production using vitrified slagJul 02, 02May 25, 04[C04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0107,875 Mid-kiln injection of waste-derived materialsAbandonedJan 04, 06May 25, 06[C04B]
7037368 Mid-kiln injection of waste-derived materialsExpiredApr 29, 04May 02, 06[C04B]
4997484 Hydraulic cement and composition employing the sameExpiredJun 05, 90Mar 05, 91[C04B]
4928736 Pipeline casing insulatorExpiredJul 29, 88May 29, 90[F16L]
4842649 Cement composition curable at low temperaturesExpiredOct 02, 87Jun 27, 89[C04B]
4642137 Mineral binder and compositions employing the sameExpiredMar 06, 85Feb 10, 87[C04B]
4640715 Mineral binder and compositions employing the sameExpiredMar 06, 85Feb 03, 87[C04B]
4509985 Early high-strength mineral polymerExpiredFeb 22, 84Apr 09, 85[C04B]

Top Inventors for This Owner

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