METSA-SERLA OYJ

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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 THEREFOR226

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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Expired/Abandoned/Withdrawn Patents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
6958108 Method of producing a fiber product having a strength suitable for printing paper and packaging materialExpiredApr 30, 99Oct 25, 05[D21C]
6939609 Filler and pigmentExpiredMar 12, 99Sep 06, 05[0000]
6939609 Filler and pigmentExpiredMar 12, 99Sep 06, 05[0000]
6530988 Porous coating pigment and a method for its productionExpiredMay 11, 99Mar 11, 03[C01B]
6436238 Process for preparing a paper webExpiredSep 16, 98Aug 20, 02[D21H]
6406592 Process for preparing base paper for fine paperExpiredSep 16, 98Jun 18, 02[D21H]
6391154 Paper web and a method for the production thereofExpiredSep 16, 98May 21, 02[D21H]
6117491 Process and coating color for coating of paper and boardExpiredJan 13, 98Sep 12, 00[B05D]
5913235 Procedure for determining the diffusion coefficient prevailing in a fibre wallExpiredApr 28, 97Jun 15, 99[G01N, D21H]

Top Inventors for This Owner

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