METSA-SERLA OY

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
D21C PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR127

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5487812 Treatment of alkaline bleached mechanical wood pulp with pectinaseAug 23, 94Jan 30, 96[D21C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6117491 Process and coating color for coating of paper and boardExpiredJan 13, 98Sep 12, 00[B05D]
5914004 Method of producing pulp for paper manufactureExpiredDec 17, 96Jun 22, 99[D21C]
5571381 Method for cutting out an edge of a web in a paper machineExpiredFeb 27, 95Nov 05, 96[D21F]
5415735 Recovery of organic substances dissolved in mechanical pulpExpiredJul 19, 93May 16, 95[D21C]
5069378 Paper dispenserExpiredMar 15, 89Dec 03, 91[A47K, B65D]
5024362 Tear-edge guardExpiredJan 31, 90Jun 18, 91[B26F]
D316645 Paper dispenserExpiredSep 21, 88May 07, 91[]
5006006 Connector for connecting wooden beams to one anotherExpiredSep 11, 89Apr 09, 91[F16B]
D310923 Towel dispenserExpiredSep 21, 88Oct 02, 90[]
D310924 Soap dispenserExpiredSep 21, 88Oct 02, 90[]
D310758 Roller dispenserExpiredSep 21, 88Sep 25, 90[]
D310759 Toilet paper dispenserExpiredSep 21, 88Sep 25, 90[]
4941943 Process for preparing sodium carboxy-methyl celluloseExpiredJan 27, 88Jul 17, 90[C08B, D21H]
4756460 Holder for paper rollsExpiredMar 17, 87Jul 12, 88[B65D]

Top Inventors for This Owner

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