PRATT & WHITNEY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 2045
 
  
 
F02C GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 1346
 
  
 
F02K JET-PROPULSION PLANTS 533
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS569
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 5193
 
  
 
F23R GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS 425
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 3203
 
  
 
B64C AEROPLANES; HELICOPTERS 272
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 243
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 299

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0058,916 GAS TURBINE FAN FAIRING PLATFORM AND METHOD OF FAIRING A ROOT LEADING EDGE OF A FAN BLADE OF A GAS TURBINE ENGINESep 01, 15Mar 02, 17[F04D]
2017/0059,161 APPARATUS AND METHOD FOR AIR EXTRACTION IN A GAS TURBINE ENGINEAug 26, 15Mar 02, 17[F23R, F02C]
2017/0051,673 FILM COOLING PASSAGE WITH MULTIDIMENSIONAL DIFFUSIONAug 17, 15Feb 23, 17[F02C]
2017/0044,908 APPARATUS AND METHOD FOR COOLING GAS TURBINE ENGINE COMPONENTSAug 14, 15Feb 16, 17[F02C, F01D]
2017/0044,931 BLADE OUTER AIR SEAL FOR A GAS TURBINE ENGINEAug 14, 15Feb 16, 17[F01D]
2017/0044,979 PRE-DIFFUSER WITH HIGH CANT ANGLEAug 14, 15Feb 16, 17[F02C, F23R]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9869202 Blade outer air seal for a gas turbine engineAug 14, 15Jan 16, 18[F01D]
9732394 Manufacturing process for aerospace bearing rolling elementsMay 17, 12Aug 15, 17[C23C, B24B, F16C, C21D]
9695709 Electronic means for detecting buffered main shaft seal wear or failure in a turbine engineApr 19, 12Jul 04, 17[G01M, F01D]
9638201 Machined aerodynamic intercompressor bleed portsJun 20, 12May 02, 17[F04D, F02C]
9540955 Stator assemblyMay 09, 12Jan 10, 17[F01D]
9494052 Dual-intent locator pin and removable plug for gas turbinesMar 27, 12Nov 15, 16[F01D]
9494925 Hybrid control systemDec 20, 11Nov 15, 16[G05B]
9482098 Convective shielding cooling hole patternMay 11, 12Nov 01, 16[F01D]
9470153 Combined pump system for engine TMS AOC reduction and ECS loss eliminationOct 05, 11Oct 18, 16[F02C]
9471057 Method and system for position control based on automated defect detection feedbackNov 09, 11Oct 18, 16[H04N, G05B, G01N, F01D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0013,599 Method of Manufacturing Fan Blade ShieldsAbandonedJul 11, 12Jan 16, 14[B23K]
2013/0259,659 Knife Edge Seal for Gas Turbine EngineAbandonedMar 27, 12Oct 03, 13[F04D]
2013/0052,437 Substrates Coated with Wear Resistant Layers and Methods of Applying Wear Resistant Layers to SameAbandonedAug 24, 11Feb 28, 13[B05D, F01D, B32B]
2010/0030,365 COMBINED MATCHING AND INSPECTION PROCESS IN MACHINING OF FAN CASE RUB STRIPSAbandonedJul 30, 08Feb 04, 10[G06F]
2009/0254,286 Systems and Methods for Modeling Surface Properties of a Mechanical ComponentAbandonedDec 02, 05Oct 08, 09[G06F, G06G]
5396793 Altitude gas turbine engine test cellExpiredSep 17, 93Mar 14, 95[G01M]
5370312 Gas turbine engine exhaust nozzleExpiredJul 13, 93Dec 06, 94[F16L, B64C]
5337452 Sealed hinge arrangementExpiredJun 11, 93Aug 16, 94[E05D]

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