Winkler & Dunnebier

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B31B MAKING BOXES, CARTONS, ENVELOPES, OR BAGS 225
 
  
 
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
5429576 Apparatus for making reusable adhesive envelopesJul 20, 94Jul 04, 95[B31B]
5302100 Drum insert for a device for producing shaped pads of fibrous material surrounded on all sides by foilsMay 28, 92Apr 12, 94[B29C]
5186705 Method and apparatus for forming clasp envelopesDec 13, 91Feb 16, 93[B31B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5782156 Flexible die and supporting cylinderExpiredDec 11, 96Jul 21, 98[B26D]
4870803 Method and apparatus for packing envelopes in cartonsExpiredMay 03, 88Oct 03, 89[B65B]
4674966 Apparatus for forming fibrous padsExpiredApr 02, 84Jun 23, 87[B28B]
4320893 Transport apparatus for transporting flexible sheet-like articlesExpiredJun 16, 80Mar 23, 82[B65H]

Top Inventors for This Owner

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