NITTO CHEMICAL INDUSTRY CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C11D DETERGENT COMPOSITIONS 164
 
  
 
C12P FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 198

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6221834 Chelating agent and detergent comprising the sameJul 13, 99Apr 24, 01[C11D]
5981238 Process for producing optically active aminopolycarboxylic acidApr 30, 97Nov 09, 99[C12P]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0049,446 ADJUSTING DEVICE OF A COIN OPERATED AMUSEMENT ASSEMBLYAbandonedAug 31, 10Mar 01, 12[A63B]
5215897 Process for producing L-amino acidsExpiredMay 17, 90Jun 01, 93[C12P, C12N]
5210308 Process for the production of modified H-mordenite, catalyst comprising said H-mordenite and process for the synthesis of methylamine with the use of the sameExpiredApr 16, 92May 11, 93[C07C]
4914163 Process for preparing heterocyclic copolymersExpiredDec 27, 88Apr 03, 90[C08G]
4904803 Process for producing N-substituted maleimidesExpiredFeb 16, 89Feb 27, 90[C07D]
4851342 Method for producing acrylamide using a microorganismExpiredJan 18, 85Jul 25, 89[C12R, C12P, C12N]
4810786 Stabilization of xanthan gum in aqueous solutionExpiredApr 08, 86Mar 07, 89[C08B]
4797184 Process for producing 7,7,8,8-tetracyanoquinodimethaneExpiredJan 04, 88Jan 10, 89[C25B]
4795779 Process for producing inorganic compound-containing urea resinExpiredMay 29, 87Jan 03, 89[C08L, C08K]
4734238 Process for producing powder of cationic polymerExpiredMar 20, 86Mar 29, 88[C08F, B29B]
4734511 Method for producing .alpha.,.alpha.-dimethyl-.DELTA.-valerolactoneExpiredOct 16, 86Mar 29, 88[C07D]
4721577 Stabilized fracturing fluid and method of stabilizing fracturing fluidExpiredJun 02, 86Jan 26, 88[E21B]
4691013 Process for production of modified hydroxyethyl celluloseExpiredAug 27, 86Sep 01, 87[C08B]
4681690 Stabilized fracturing fluid and method of stabilizing fracturing fluidExpiredJan 16, 86Jul 21, 87[E21B]
4661266 Completion and workover fluidsExpiredJul 16, 85Apr 28, 87[E21B]
4624800 Method for producing aqueous, low-alkali metal, low-alumina silica solsExpiredDec 10, 84Nov 25, 86[B01J]
4623822 Electrodeless discharge resonance lampExpiredSep 26, 84Nov 18, 86[H01J]
4614601 Completion and workover fluidsExpiredApr 02, 85Sep 30, 86[E21B, C08L]
4607099 Stabilization of xanthan gum in aqueous solutionExpiredDec 03, 84Aug 19, 86[C09K, C08B]
4605505 Drilling fluidsExpiredApr 02, 85Aug 12, 86[C09K]

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