Frankische Rohrwerke Gebr. Kirchner GmbH & Co. KG

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL565
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2123
 
  
 
E03F SEWERS; CESSPOOLS111

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9506235 Drainage trench unit and transport unit formed from such drainage trench unitsNov 09, 12Nov 29, 16[E03F]
8230885 Fluid duct, and flexible pipe for a fluid ductApr 05, 07Jul 31, 12[F16L]
7455327 Coupling deviceDec 20, 05Nov 25, 08[F16L]
7069953 Plastic corrugation corrugated pipe with monolithic containerAug 09, 02Jul 04, 06[F16L]
6860518 Corrugated plastic pipe with fastening portionAug 14, 02Mar 01, 05[F16L]
6793475 Coextrusion nozzle arrangementDec 17, 01Sep 21, 04[B29C]
6129120 Pipe-arrangementApr 02, 99Oct 10, 00[F16L]
5164204 Modular corrugatorJul 12, 91Nov 17, 92[B29C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8104996 Two-shell structural system for constructing plantable steep embankments formed from several layersExpiredNov 19, 10Jan 31, 12[E02D]
2005/0170,119 Multi-layer plastic conduit comprising a PVC layerAbandonedOct 29, 04Aug 04, 05[B32B]
2004/0135,369 Corrugated pipe connecting arrangement and corrugated pipeAbandonedDec 01, 03Jul 15, 04[F16L]
2004/0060,204 Motor vehicle jet water conduit connecting arrangementAbandonedMar 19, 03Apr 01, 04[E02F]
6698456 Protective corrugated plastic pipeExpiredMar 07, 02Mar 02, 04[F16L]
2003/0034,651 Corrugated plastic pipe arrangementAbandonedAug 14, 02Feb 20, 03[F16L]
6485286 Exchangeable corrugatorExpiredApr 03, 00Nov 26, 02[B29C]
6164338 Corrugated pipe with footExpiredApr 02, 99Dec 26, 00[F16L]
5277459 Pipe connector, pipe coupler and associated nutExpiredFeb 14, 91Jan 11, 94[F16L]
4986575 Plastic protective tube arrangement for linesExpiredNov 17, 87Jan 22, 91[F16L]
4674969 Apparatus for making plastic tubesExpiredMay 29, 85Jun 23, 87[B29C]

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