MO OCH DOMSJO AB
Patent Owner
Stats
- 2 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jul 10, 2001 most recent publication
Details
- 2 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,062 Total Citation Count
- Feb 09, 1977 Earliest Filing
- 59 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
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Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6258208 Method for complex treatment of pulp in conjunction with a chlorine dioxide stageExpiredSep 27, 96Jul 10, 01[D21C]
6174586 Surface treated security paper and method and device for producing surface treated security paperExpiredMay 07, 98Jan 16, 01[B05C, B05D, B32B]
6126782 Method for non-chlorine bleaching of cellulose pulp with a totally closed counter-current liquid circuitExpiredJul 08, 96Oct 03, 00[D21C]
6039837 Method of bleaching pulp with ozone wherein the acidity is maintained with an acid solution prepared by electrolysis or electrodialysisExpiredJul 09, 98Mar 21, 00[D21C]
5628875 Method for clarifying green liquor by monitoring the calcium concentration in the spent liquor prior to or at combustionsExpiredJun 05, 95May 13, 97[D21C]
5456799 Method for controlling activation of lignocellulosic material in the presence of a nitrate containing liquidExpiredApr 12, 94Oct 10, 95[D21C]
5262006 Paper manufacturing process, and papers obtainable by means of that processExpiredAug 12, 91Nov 16, 93[D21H]
5035772 Method for treating bleached lignin containing cellulose pulp by reducing .alpha.-carbonyl and .gamma.-carbonyl groups and converting short-wave quanta to long-wave light quantaExpiredSep 28, 89Jul 30, 91[D21H, D21C]
5000823 Method and apparatus for the processing of groundwood pulp to remove coarse particulate lignocellulosic materialExpiredMar 27, 86Mar 19, 91[B02C, D21D, D21C]
4952276 Method for measuring the bleaching content of pulp bleaching liquor using a chemiluminescent reagentExpiredJan 08, 90Aug 28, 90[G01N, D21C]
4921613 Method for purifying resin-containing waste liquor in the manufacture of cellulose pulpsExpiredDec 23, 88May 01, 90[C02F]
4897156 Process for activating cellulose pulp with NO and/or NO.sub.2 and oxygen in the presence of nitric acid and then delignifying bleaching the activated cellulose pulpExpiredMar 24, 82Jan 30, 90[D21C]
4853082 Process for the activation and delignification of cellulose pulpExpiredJun 09, 87Aug 01, 89[D21C]
4776926 Process for producing high yield bleached cellulose pulpExpiredSep 09, 85Oct 11, 88[D21B, D21C]
4762591 Apparatus for reacting lignocellulosic material with a gas phase comprising a nitrogen oxide and oxygen under controlled gas pressureExpiredMar 05, 87Aug 09, 88[D21C]
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