M&G DURAVENT

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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 GENERAL367
 
  
 
F24C OTHER DOMESTIC STOVES OR RANGES; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION 330
 
  
 
F23J REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 215
 
  
 
F23L AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS 215
 
  
 
2304 VENTILATION AND AIR-CONDITIONING EQUIPMENT232

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9140450 Retrofitted corrosive resistant venting systemApr 21, 09Sep 22, 15[F23J]
8672367 Exhaust system interlocking mechanismMay 02, 07Mar 18, 14[F16L]
8505981 Gasket-less vent pipe couplingMay 01, 07Aug 13, 13[F16L]
8408196 Ceiling support box with outside air inletOct 26, 09Apr 02, 13[F24C]
8230849 Wall thimble with outside air inletAug 20, 09Jul 31, 12[F23L, F24C]
8156931 Direct vent capApr 29, 05Apr 17, 12[F24C]
8056552 Wall thimble with outside air inletAug 20, 09Nov 15, 11[F24L, F23L]
7665457 Wall thimble with outside air inletMay 01, 07Feb 23, 10[F23L, F24C]
D552725 Vent capMay 03, 05Oct 09, 07[2304]
D552726 Direct vent capMay 03, 05Oct 09, 07[2304]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0139,510 BIOFUEL APPLIANCE VENTING SYSTEMAbandonedNov 30, 07Jun 04, 09[F24C]
2008/0072,892 CATCH FOR CONDENSATESAbandonedSep 21, 07Mar 27, 08[F23J]
4846147 Chimney liner systemExpiredOct 05, 87Jul 11, 89[F23J]
4608963 Thermally balanced air flow chimneyExpiredJan 04, 85Sep 02, 86[F23L]
4385623 Flue pipe for fireplace stoveExpiredSep 22, 80May 31, 83[F23J, F24C]

Top Inventors for This Owner

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