ENSO-GUTZEIT OY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5840385 Cover for product package and method for producing sameAug 18, 97Nov 24, 98[B65D, B32B]
5738933 Mutli-layer productMar 22, 96Apr 14, 98[B32B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5843316 Method of separating sodium hydroxide from white liquor or polysulfide liquor using diffusion dialysisExpiredFeb 25, 97Dec 01, 98[C02F, C01D]
5510035 Method of separating sodium hydroxide from white liquorExpiredOct 18, 94Apr 23, 96[B01D]
5022962 Method for the treatment of spent liquors in pulp productionExpiredOct 24, 89Jun 11, 91[D21C]
4980023 Method for manufacturing paper or cardboard and product containing cellulaseExpiredDec 05, 88Dec 25, 90[D21H]
4795170 Packing arrangement for sealing the surface of a rotary drum like objectExpiredOct 15, 86Jan 03, 89[F16J]
4769986 Apparatus for washing cellulose with a rotary drumExpiredOct 21, 86Sep 13, 88[D21C]
4762590 Causticizing processExpiredJun 03, 86Aug 09, 88[D21C]
4687583 Procedure for filtering lime sludge meant to be regenerated to limeExpiredMar 12, 86Aug 18, 87[B01D]
4683816 Drum pressExpiredJun 13, 85Aug 04, 87[B30B]
4681935 Procedure for recovering soluble carbohydrates contained in woodExpiredNov 27, 85Jul 21, 87[C08B, D21C]
4678574 Disc filterExpiredDec 03, 85Jul 07, 87[B01D]
4671878 Means for clearing the blocked reject end of a vortex purifierExpiredNov 04, 85Jun 09, 87[B01D]
4657678 Twin hydrocycloneExpiredMar 19, 85Apr 14, 87[B01D]
4639942 Procedure for measuring the quantity of silicon coating on paper or cardboardExpiredMar 17, 86Jan 27, 87[G01N]
4627888 Causticizing methodExpiredFeb 22, 84Dec 09, 86[C01F]
4612115 Floating bed reactorExpiredNov 16, 84Sep 16, 86[C02F, B01D]
4608174 Feed and accept duct system for hydrocyclonesExpiredMar 20, 85Aug 26, 86[B04C]
4604195 Filter press for thickening cellulose pulp or sludgeExpiredApr 23, 84Aug 05, 86[B01D]
4595840 Procedure and means for observing streaks in the machine direction in paper or in its coatingExpiredJun 27, 84Jun 17, 86[G01N]
4572957 Means for creating an electron curtainExpiredMay 03, 84Feb 25, 86[H01J]

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