Kiefel Extrusion GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES376
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7736140 Interior cooling body for a blowfilm system, blowfilm system, and process for producing a blowfilmDec 19, 06Jun 15, 10[B29C]
5553805 Process and apparatus for winding sheet materialNov 25, 94Sep 10, 96[B65H]
5431357 Process and apparatus for winding up a continuously fed web of material onto a number of winding coresOct 28, 93Jul 11, 95[B65H]
5308008 Method and apparatus for producing rollsJun 15, 92May 03, 94[B65H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7540291 Method and device for cleaning a blowing head for plastic filmsExpiredFeb 17, 05Jun 02, 09[B08B]
7490974 Screw extrusion press and method with mixing rings having passagesExpiredMay 07, 07Feb 17, 09[B29C, B29B]
2008/0191,381 Axial or conical spiral distributor for a blown film line and manufacturing method of a multilayered filmAbandonedJan 31, 08Aug 14, 08[B29C]
7370564 Cutting device and transporting roller for webs of materialExpiredApr 07, 05May 13, 08[B26D]
7347680 Device for producing lay-flat tubes in blown film extrusion installationExpiredNov 12, 04Mar 25, 08[B28B]
7314196 Apparatus for handling a finished roll and a winding shaft on a winding apparatus for webs of materialExpiredJun 13, 05Jan 01, 08[B65H]
2006/0102,274 Method and device for clockwise and counterwise winding of a sheet of materialAbandonedNov 16, 05May 18, 06[B65H, B31C]
2005/0214,400 Blowing head with melt distributionAbandonedMar 22, 05Sep 29, 05[B29C]
2005/0140,046 Device for producing multilayer blown filmAbandonedDec 21, 04Jun 30, 05[B29C]

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