NORTHWEST ULD, INC. DBA NORTHWEST UAV PROPULSION SYSTEMS

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 271
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 270

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9255502 Engine with exhaust system and external acoustic emissions valveAug 15, 14Feb 09, 16[F01N, F02B]
9249703 Compact muffler for small two-stroke internal combustion enginesNov 11, 13Feb 02, 16[F01N]
8602159 Compact muffler for small two-stroke internal combustion enginesJul 11, 12Dec 10, 13[F01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6945198 Variable fuel and fluid delivery systemExpiredAug 09, 04Sep 20, 05[F02B]
6786194 Variable fuel delivery system and methodExpiredOct 31, 02Sep 07, 04[F02M]
6782869 Fuel delivery system and methodExpiredAug 30, 02Aug 31, 04[F02B]
6729306 Micro-pump and fuel injector for combustible liquidsExpiredFeb 26, 02May 04, 04[F02M]
6675775 System and method for delivering combustible liquidsExpiredApr 10, 02Jan 13, 04[F02M]

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