Norsk Hydro a.s.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 253
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 1254
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C05C NITROGENOUS FERTILISERS114
 
  
 
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 112
 
  
 
C11C FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM116
 
  
 
C12N MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF 1166
 
  
 
C12P FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 198

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5945318 Refining oil compositionsSep 06, 96Aug 31, 99[C12P, C12N, C11C]
5670061 Process for treating ashMay 09, 95Sep 23, 97[C02F]
5628911 Filtration of soot/ash water slurries and improved partial oxidation process for hydrocarbon feedstocksAug 04, 95May 13, 97[C02F]
5609843 Microporous crystalline silico-alumino-phosphate and a procedure for manufacturing itFeb 12, 96Mar 11, 97[C01B]
5603745 Agricultural composition and conditioning agent for reducing hygroscopicity and dust formation of fertilizersJun 23, 95Feb 18, 97[C05G, C05C]
5502077 Fatty acid compositionJun 23, 92Mar 26, 96[A61K]
5247970 Method for filling particulate material into tubesMar 04, 92Sep 28, 93[B65B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6290927 Method for the removal of unwanted color from hydrochloric acidExpiredJan 24, 96Sep 18, 01[C01B]
5663471 Procedure for synthesis of crystalline microporous silico-alumino-phosphatesExpiredAug 25, 94Sep 02, 97[C01B, C07C]
5071534 Aluminum electrolysis cell with continuous anodeExpiredJan 23, 90Dec 10, 91[C25C]
4742008 Preparation of the enzyme beta-glucanase by fermentation of fungiExpiredJun 04, 86May 03, 88[C12R, C12N]
4669917 Fixed marine steel structure and procedure for assembly of the structureExpiredOct 31, 85Jun 02, 87[E02B]
4579152 Method of filling fluidizable material in flexible containersExpiredNov 17, 83Apr 01, 86[B65B]

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