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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS173

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6340288 High-pressure fanJul 02, 99Jan 22, 02[F04D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6264430 Evaporating fan and its blade wheelExpiredJul 02, 99Jul 24, 01[F04D]
5632675 Mixing section for supply air and return air in an air-conditioning apparatusExpiredJan 16, 96May 27, 97[F24F]
5554071 Air-change system for a multi-storey buildingExpiredOct 31, 94Sep 10, 96[F24F]

Top Inventors for This Owner

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