Bharat Heavy Electricals, Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B02C CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 233
 
  
 
C22C ALLOYS 171
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 164
 
  
 
F03B MACHINES OR ENGINES FOR LIQUIDS 123
 
  
 
F28B STEAM OR VAPOUR CONDENSERS 17
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8344301 Rapid and homogenous heat treatment of large metallic sample using high power microwavesFeb 23, 06Jan 01, 13[H05B]
7981360 Niobium addition in Cr-Mo-¼V steel castings for steam turbine casing applicationsMar 20, 06Jul 19, 11[C22C]
7610952 Steam condenser with two-pass tube nest layoutAug 04, 06Nov 03, 09[F28B]
7252253 Bowl mill for a coal pulverizer with an air mill for primary entry of airApr 13, 04Aug 07, 07[B02C]
7210904 Runner blade for low specific speed Francis turbineJul 29, 04May 01, 07[F03B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7673827 Bowl mill for a coal pulverizer with an air mill for primary entry of airExpiredJul 25, 07Mar 09, 10[B02C]
2009/0294,105 Selectively Grooved Cold Plate for Electronics CoolingAbandonedAug 10, 05Dec 03, 09[F28D, F28F, H05K]
7179058 Aerodynamically wide range applicable cylindrical blade profilesExpiredJun 04, 04Feb 20, 07[F01D]
7175393 Transonic blade profilesExpiredJun 04, 04Feb 13, 07[F01D]
6979178 Cylindrical blades for axial steam turbinesExpiredJun 14, 02Dec 27, 05[F01D]
6709239 Three dimensional bladeExpiredJun 21, 02Mar 23, 04[F01D]

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