Rheinische Kalksteinwerke GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR194

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6352956 Mixed powder containing a carbon compoundJul 19, 99Mar 05, 02[C09K]
6074620 Method for the cleaning of exhaust gas and prevention of explosions thereinOct 05, 94Jun 13, 00[B01J]
5229097 Process for the production of chlorosilicatesAug 23, 91Jul 20, 93[C04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5876689 Process for the manufacture of milk of limeExpiredNov 19, 97Mar 02, 99[C01F]
4636379 Process for producing calcium hydroxideExpiredSep 05, 85Jan 13, 87[C01F]
4249894 Blast furnace for heating granular materialExpiredMay 19, 78Feb 10, 81[F27D, C21B]
4242144 Bituminous mixed composition and filler for same containing non-hygroscopic crystal water-containing substancesExpiredApr 09, 79Dec 30, 80[C09D, C08L]

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