North American Industrial Services Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 320
 
  
 
F42D BLASTING 311
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 256
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 243
 
  
 
F42B EXPLOSIVE CHARGES, e.g. FOR BLASTING; FIREWORKS; AMMUNITION 237
 
  
 
F28G CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS 17

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8747568 Industrial cleaning system and methods related theretoNov 19, 12Jun 10, 14[B08B]
8313581 Industrial cleaning system and methods related theretoAug 08, 08Nov 20, 12[B08B]
7395760 Device, system and method for on-line explosive deslaggingSep 07, 05Jul 08, 08[F42D]
6755156 Device, system and method for on-line explosive deslaggingMar 05, 02Jun 29, 04[F22B]
6644201 Device, system and method for on-line explosive deslaggingMay 02, 02Nov 11, 03[F28D, F42B]
6604468 Device, system and method for on-line explosive deslaggingAug 12, 02Aug 12, 03[F42D]
6431073 Device, system and method for on-line explosive deslaggingJul 08, 99Aug 13, 02[F42D, F28D, F42B]
6321690 Device, system and method for on-line explosive deslaggingSep 10, 99Nov 27, 01[F22B]
5769034 Device, system and method for on-line explosive deslaggingJan 17, 97Jun 23, 98[F28G, F22B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0107,858 Device, System and Method for On-Line Explosive DeslaggingAbandonedAug 06, 03Jun 10, 04[F42D]

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