SPRING AG METALLWARENFABRIKEN AG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS 126

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5292461 Process for the production of pelletsAug 22, 91Mar 08, 94[B29B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D369506 Rectangular chafing dishExpiredJul 27, 94May 07, 96[]
4380992 Burner, especially for a flambe portable stove or the likeExpiredSep 02, 80Apr 26, 83[F24C]
4188938 Burner device, especially for a brazier or the likeExpiredFeb 22, 78Feb 19, 80[F24C]

Top Inventors for This Owner

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