CARBORUNDUM COMPANY, THE

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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 1058
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4153
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 299
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 221
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 2136
 
  
 
B28B SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 127
 
  
 
D01F CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 134

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5944963 Method of coating a substrate with a SiC.sub.x filmApr 07, 97Aug 31, 99[C23C]
5945062 Silicon carbide reinforced reaction bonded silicon carbide compositeFeb 17, 98Aug 31, 99[B28B]
5834387 Ceramic comprising silicon carbide with controlled porosityJul 25, 97Nov 10, 98[C04B]
5817432 Silicon carbide reinforced reaction bonded silicon carbide compositeAug 16, 96Oct 06, 98[B32B]
5741403 Ceramic substrates and magnetic data storage components prepared therefromDec 18, 96Apr 21, 98[G11B]
5635430 Intermediate for producing porous silicon carbideJun 01, 95Jun 03, 97[C04B]
5626943 Ultra-smooth ceramic substrates and magnetic data storage media prepared therefromJun 02, 94May 06, 97[G11B, B32B]
5616426 Ceramic substrate with silicon carbide smoothing layerSep 29, 95Apr 01, 97[B32B]
5589428 Silicon carbide with controlled porosityJun 05, 95Dec 31, 96[C04B]
5563108 Raw batch for producing reaction-bonded silicon carbide refractory productMay 25, 95Oct 08, 96[C04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6017485 Process for making a low electrical resistivity, high purity aluminum nitride electrostatic chuckExpiredMar 28, 96Jan 25, 00[C04B]
5643514 Process for manufacturing a silicon carbide compositionExpiredMay 22, 95Jul 01, 97[C04B]
5484655 Aluminum nitride-coated silicon carbide fiberExpiredNov 04, 93Jan 16, 96[B32B]
5436042 Ceramic fiber-reinforced composite articles and their productionExpiredMar 11, 94Jul 25, 95[F16B]
5354615 Coated SiC reinforcements and composites containing sameExpiredJun 27, 90Oct 11, 94[B32B]
5322824 Electrically conductive high strength dense ceramicExpiredMay 27, 93Jun 21, 94[C04B]
5296311 Silicon carbide reinforced reaction bonded silicon carbide compositeExpiredMar 17, 92Mar 22, 94[B32B]
5252361 Protective coating for non-oxide sintered fibers generated by in situ chemical reactionExpiredJan 19, 90Oct 12, 93[C23C]
5227105 Process for manufacturing ceramic tubesExpiredJul 09, 90Jul 13, 93[C04B]
5212125 Process for sintering aluminum nitride using organometallic compoundsExpiredNov 20, 90May 18, 93[C04B, F27B]
5171491 Method of producing near net shape fused cast refractoriesExpiredFeb 08, 91Dec 15, 92[C04B, B29D]
5154907 Process for the continuous production of high purity, ultra-fine, aluminum nitride powder by the carbo-nitridization of aluminaExpiredApr 25, 90Oct 13, 92[C01B]
5108713 Apparatus for the continuous production of high ultra-fine, aluminum nitride powder by the carbo-nitridization of aluminaExpiredFeb 21, 90Apr 28, 92[F27B]
5057001 Apparatus for making ceramic tubesExpiredMar 10, 89Oct 15, 91[B29C]
5028572 Near net shape fused cast refractories and process for their manufacture by rapid melting/controlled rapid coolingExpiredNov 23, 88Jul 02, 91[C04B]
4973433 Apparatus for injecting gas into molten metalExpiredJul 28, 89Nov 27, 90[B01F]
4932166 Inert autogenous attrition grindingExpiredOct 03, 88Jun 12, 90[B24D]
4896017 Anode for a plasma arc torchExpiredNov 07, 88Jan 23, 90[B23K]
4747583 Apparatus for melting metal particlesExpiredJun 10, 87May 31, 88[F27B]
4621017 Corrosion and wear resistant graphite material and method of manufactureExpiredMar 05, 84Nov 04, 86[C04B]

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