The Wiggins Teape Group Limited

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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
 
  
 
C09D COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 191
 
  
 
D21F PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON128
 
  
 
D21H PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 137

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6468393 Patterned paperNov 21, 97Oct 22, 02[D21F]
5639324 Method of making laminated reinforced thermoplastic sheets and articles made therefromJul 02, 90Jun 17, 97[B32B]
5558931 Fibre reinforced thermoplastics material structureJul 09, 90Sep 24, 96[B32B]
5304242 Color developer compositionMay 13, 92Apr 19, 94[C09D]
5215627 Method of making a water laid fibrous web containing one or more fine powdersJul 14, 92Jun 01, 93[D21H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5876643 Electromagnetic interference shieldingExpiredNov 15, 96Mar 02, 99[B28B]
5495751 Streaming potential measuring cellExpiredNov 12, 93Mar 05, 96[G01N]
5352495 Treatment of a surface by laser energyExpiredJan 06, 93Oct 04, 94[B05D]
5350500 Electrokinetic potential measurementExpiredApr 05, 93Sep 27, 94[G01N]
5290672 Base paper for photographic printsExpiredJul 31, 92Mar 01, 94[G03C]
5242749 Fibre reinforced plastics structuresExpiredAug 07, 90Sep 07, 93[B32B]
5188778 Process for the surafce enhancement of articles of fibre reinforced plastics materialExpiredJul 20, 90Feb 23, 93[B29C]
5130289 Pressure sensitive record materialExpiredOct 15, 90Jul 14, 92[B41M]
5084431 Pressure-sensitive copying paperExpiredJun 30, 89Jan 28, 92[B41M]
5062923 Rope system for a paper machine coating or size press sectionExpiredJul 13, 90Nov 05, 91[D21F]
5053449 Plastics materialExpiredNov 29, 88Oct 01, 91[C08K]
4981636 Fibre reinforced plastics structuresExpiredMar 11, 88Jan 01, 91[D04H]
4978489 Process for the manufacture of a permeable sheet-like fibrous structureExpiredMay 31, 89Dec 18, 90[B29C, B32B]
4969975 Process for forming a sheet of materialExpiredFeb 24, 89Nov 13, 90[B28B, D21J, D21H, D21D]
4964935 Method of making fibre reinforced thermoplastics material structureExpiredAug 03, 89Oct 23, 90[B29C]
4961080 Laser marker with mask scanningExpiredFeb 16, 89Oct 02, 90[G02B, G01D]
4959264 Release paper for making artificial leatherExpiredJan 05, 88Sep 25, 90[B41M, B32B]
4957805 Method of making laminated reinforced thermoplastic sheets and articles made therefromExpiredJul 11, 88Sep 18, 90[B32B]
4944843 Process and apparatus for forming particulate layersExpiredMay 25, 88Jul 31, 90[D21F]
4925530 Loaded paperExpiredJul 20, 88May 15, 90[D21H]

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