Kali und Salz Aktiengesellschaft

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B03C MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS 219
 
  
 
C05G MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS 211
 
  
 
B07C POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING 126
 
  
 
C05C NITROGENOUS FERTILISERS114
 
  
 
C05D INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE19

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5431708 Process for preventing a formation of dust during the loading and shipping of sulfate fertilizer granulatesSep 28, 93Jul 11, 95[C05G, C05C]
5383952 Process for binding dust in fertilizer granulesMar 16, 94Jan 24, 95[C05G, C05D]
5370235 Method of separating polyethylene (PE) and polypropylene (PP)Apr 09, 93Dec 06, 94[B03C]
5366091 Method of separating poly(ethylene terephthalate) (PET) and poly(vinyl chloride) (PVC)Apr 09, 93Nov 22, 94[B03C]
5358119 Method of separating a mixture of plastics comprising at least three components using electrostatic techniquesApr 09, 93Oct 25, 94[B07C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5102441 Method of making a langbeinite slurry as a binder for MgO-containing fertilizers and fertilizers therefromExpiredJul 11, 90Apr 07, 92[C05D]
5057208 Method for the production of potassium chloride with K.sub.2 O content of more than 55 weight percentExpiredOct 06, 88Oct 15, 91[B03D]
5035872 Method of preparing potassium magnesium phosphateExpiredMay 03, 90Jul 30, 91[C01B]
4848675 Method of granulating water soluble fertilizers with high kieserite contentExpiredMay 25, 88Jul 18, 89[B02C]
4797201 Electrostatic free-fall separatorExpiredSep 12, 83Jan 10, 89[B03C]
4792350 Method of granulating water soluble fertilizer with high kieserite contentExpiredMay 27, 87Dec 20, 88[C05G, C05D]
4767506 Electrostatic treatment of milled crude potash salts containing kieseriteExpiredAug 03, 87Aug 30, 88[B03B]
4743362 Process and device for controlling the electrostatic separation of crude potash salts in electrostatic free fall separatorsExpiredSep 17, 85May 10, 88[B03C]
4707347 Process for the production of potassium sulfate from potassium chloride by means of ion exchangersExpiredApr 17, 86Nov 17, 87[C22B, C01D]
4570861 Method of and arrangement for electrostatic separation of paper- and synthetic plastic material-containing mixturesExpiredJul 25, 83Feb 18, 86[B02C]
4569432 Arrangement for feeding of a fine-particle material to electrostatic free-fall cutterExpiredJul 26, 83Feb 11, 86[B65G]
4557827 Electrostatic free-fall separator with feeding arrangementExpiredOct 31, 83Dec 10, 85[B03C]
4536376 Method of producing potassium magnesium phosphateExpiredJun 13, 83Aug 20, 85[C01B]
4496526 Process for the production of potassium magnesium phosphateExpiredFeb 07, 83Jan 29, 85[C01B]
4339274 Binding materials based upon magnesium compoundsExpiredJun 03, 80Jul 13, 82[C04B]
4308499 Method utilizing electromagnetic wave pulses for determining the locations of boundary surfaces of underground mineral depositsExpiredJul 02, 79Dec 29, 81[G01V]
4297207 Process and apparatus for the electrostatic dressing of carnallite-containing crude potassium saltsExpiredMar 30, 79Oct 27, 81[B03B]
4276154 Process for the electrostatic separation of crude potash saltsExpiredMar 16, 79Jun 30, 81[B03B]
4247221 Process for lining tunnelsExpiredJan 30, 79Jan 27, 81[E21D]
4217333 Process for the production of potassium magnesium phosphateExpiredJul 17, 79Aug 12, 80[C01B]

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