VIESSMANN WERKE GMBH & CO. KG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 122
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 126
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 167
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8122855 BoilerJan 09, 07Feb 28, 12[F24H]
8091515 Heat exchanger for hot air generator and boilerOct 11, 06Jan 10, 12[F22B]
7632778 Device for the generation of hydrogenJan 17, 05Dec 15, 09[B01J]
7158525 Apparatus and process for data communication, in particular for the parameterization and remote monitoring of heating installationsFeb 26, 02Jan 02, 07[H04L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8544293 Vacuum sorption apparatusExpiredJun 21, 11Oct 01, 13[F25B]
2012/0288,805 HEATING SYSTEM AND METHOD FOR OPERATING SAID SYSTEMAbandonedNov 05, 10Nov 15, 12[F23N]
2012/0055,194 VACUUM SORPTION DEVICEAbandonedNov 10, 11Mar 08, 12[F25B]
2011/0183,835 ADSORBER ELEMENT AND METHOD FOR PRODUCING AN ADSORBER ELEMENTAbandonedOct 02, 09Jul 28, 11[B82Y, B01J]
2010/0058,189 DEVICE AND METHOD FOR CONTROLLING AND MONITORING DOMESTIC TECHNOLOGY DEVICESAbandonedNov 15, 07Mar 04, 10[G06F]
2010/0044,011 HEATING DEVICEAbandonedFeb 02, 07Feb 25, 10[F28D]
2008/0248,348 Fuel-Cell Installation, Method For Activating and Deactivating Said InstallationAbandonedMar 16, 05Oct 09, 08[H01M]
2008/0019,884 Apparatus for Producing HydrogenAbandonedNov 25, 04Jan 24, 08[C01B, B01J]
2007/0104,990 Fuel cells with integrated humidification and method for humidifying fuel cell process gasAbandonedDec 22, 06May 10, 07[H01M]
7172827 Fuel cells with integrated humidification and method for humidifying fuel cell process gasExpiredJan 30, 02Feb 06, 07[H01M]
7169492 Method for regulating operation of fuel cell installations controlled according to heat and/or power requirementExpiredJun 28, 01Jan 30, 07[H01M]
2005/0172,553 Device for the generation of hydrogenAbandonedApr 26, 05Aug 11, 05[B01J]
6923948 Combined heat and power plant and a process for the operation thereofExpiredMar 27, 02Aug 02, 05[C01B]
6430925 Method and device for operating a heating and cooling machine functioning on the basis of a regenerative gas cyclic processExpiredDec 15, 00Aug 13, 02[F01P, F01B]
6029449 Heat and cold-generating machineExpiredJul 24, 97Feb 29, 00[F01B]
5794444 Method for utilizing waste-gas heat from heat-generating and refrigerating machinesExpiredJan 06, 97Aug 18, 98[F25B, F01B, F02G]
5715683 Heating and cooling machineExpiredJan 16, 96Feb 10, 98[F25B]
5675974 Heat exchangerExpiredSep 15, 95Oct 14, 97[F25B]
5474443 Radiant burner for boilersExpiredFeb 07, 94Dec 12, 95[F23D]
5453004 Method for operation of an oil evaporation burner and an oil evaporation burner for carrying out the methodExpiredMar 22, 94Sep 26, 95[F23N]

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