Krupp Polysius AG

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

  • No Technology to Display

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

  • No Recent Patents to Display

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5902685 Roll, method of producing a roll as well as material bed roll millExpiredJan 11, 96May 11, 99[7./0, B32B]
5836758 Reciprocating grate for the treatment of bulk materialExpiredDec 03, 96Nov 17, 98[F23H, F27D]
5791490 Separator for particulate materialsExpiredJan 07, 97Aug 11, 98[B07B]
5715687 Double layer coolerExpiredMay 19, 95Feb 10, 98[F25D]
5676317 Method and apparatus for combined grinding of at least two materials of differing grindabilityExpiredNov 13, 95Oct 14, 97[B02C]
5673860 Method and apparatus for comminuting moist mineral materialExpiredJan 11, 96Oct 07, 97[B02C]
5613782 Supporting roller bearingExpiredSep 08, 95Mar 25, 97[F16C]
5568734 Double layer coolerExpiredMay 19, 95Oct 29, 96[F25D]
5553796 Roller MillExpiredJan 10, 95Sep 10, 96[B02C]
5462234 Grinding plant and method of grinding and classifying brittle material for grindingExpiredApr 21, 94Oct 31, 95[B02C]
5437721 Method of producing cement clinkerExpiredJun 07, 94Aug 01, 95[C04B]
5415541 Rotary drumExpiredApr 22, 93May 16, 95[F27B]
5383610 Method of operating a material bed roll millExpiredMay 24, 93Jan 24, 95[B02C]
5381968 Apparatus and method for the crushing of material for grinding of differing grain sizeExpiredJul 13, 92Jan 17, 95[B02C]
5381977 Apparatus for material bed comminution of brittle material for grindingExpiredAug 25, 93Jan 17, 95[B02C]
5351894 Method for the comminution of brittle material for grindingExpiredJul 21, 92Oct 04, 94[B02C]
5350124 Roll millExpiredFeb 24, 93Sep 27, 94[B02C]
5330350 Reciprocating grate coolerExpiredJul 01, 92Jul 19, 94[F23D]
5322434 Cooler grateExpiredOct 05, 92Jun 21, 94[F27D]
5312056 Roll millExpiredFeb 25, 93May 17, 94[B02C, B23K, C22C]

View all patents..

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.