PREFERRED UTILITIES MANUFACTURING CORPORATION

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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
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 164
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 146
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS149
 
  
 
F23D BURNERS 131
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 126
 
  
 
G21C NUCLEAR REACTORS 142

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9682363 Method for production of activated carbonNov 10, 15Jun 20, 17[C01B, B01J]
9685245 Remotely installed fuel transfer tube closure systemJun 17, 14Jun 20, 17[G21C, F01D, F16J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0138,634 Method and Apparatus for Firetube Boiler and Ultra Low NOx BurnerAbandonedNov 16, 15May 18, 17[F24H]
2009/0142,717 Metering combustion controlAbandonedDec 04, 07Jun 04, 09[F23N]
4584162 Pipe plug and remote installation equipment thereforExpiredMar 31, 82Apr 22, 86[F16L, B25B]

Top Inventors for This Owner

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