ALLISON ENGINE COMPANY, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F02K JET-PROPULSION PLANTS 335
 
  
 
F23R GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS 227
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 151
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B64C AEROPLANES; HELICOPTERS 173
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 150
 
  
 
F02C GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 158
 
  
 
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
6218026 Lightweight high stiffness member and manufacturing method thereofMar 03, 98Apr 17, 01[B22F]
6195864 Cobalt-base composition and method for diffusion braze repair of superalloy articlesMay 07, 99Mar 06, 01[B23P]
6105901 Thrust vectoring systemApr 06, 98Aug 22, 00[F02K, B64C]
6094916 Dry low oxides of nitrogen lean premix module for industrial gas turbine enginesJul 08, 98Aug 01, 00[F23R]
5958204 Enhancement of coating uniformity by alumina dopingSep 26, 97Sep 28, 99[C25D]
5863183 High temperature rotor blade attachmentJan 16, 97Jan 26, 99[F04D]
5769317 Aircraft thrust vectoring systemMay 04, 95Jun 23, 98[F02K]
5622045 System for detecting and accommodating gas turbine engine fan damageJun 07, 95Apr 22, 97[F02C]
5289686 Low nox gas turbine combustor liner with elliptical apertures for air swirlingNov 12, 92Mar 01, 94[F23R]
5233827 Radiation supressionJun 08, 70Aug 10, 93[F02K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5961067 Method for reducing turboprop noiseExpiredAug 27, 97Oct 05, 99[B64D]
5836742 High temperature rotor blade attachmentExpiredJan 16, 97Nov 17, 98[F04D]
5782141 Engine having a non-intrusive self closing valve for magnetic chip detectorsExpiredMar 06, 95Jul 21, 98[B03C, F16H]
5688108 High temperature rotor blade attachmentExpiredAug 01, 95Nov 18, 97[F04D]
5660526 Gas turbine rotor with remote support ringsExpiredJun 05, 95Aug 26, 97[F01D]
5593165 Circumferential flow channel for carbon seal runner coolingExpiredSep 20, 94Jan 14, 97[F02C]
5359770 Method for bonding abrasive blade tips to the tip of a gas turbine bladeExpiredSep 08, 92Nov 01, 94[B23P]
5301595 High temperature rope seal type joint packingExpiredJun 25, 92Apr 12, 94[D04C]
5271916 Device for staged carbon monoxide oxidationExpiredJun 30, 92Dec 21, 93[C01B]
5255506 Solid fuel combustion system for gas turbine engineExpiredNov 25, 91Oct 26, 93[F02C]
5250136 Method of making a core/pattern combination for producing a gas-turbine blade or componentExpiredFeb 12, 92Oct 05, 93[B32B]
5239880 Load sharing right angle bevel gear driveExpiredSep 21, 92Aug 31, 93[F16H]
5234201 Contour hardening apparatusExpiredJun 29, 92Aug 10, 93[C21D]
5219147 Valve lockExpiredSep 18, 92Jun 15, 93[F16K]
5186006 Mounting for ceramic scrollExpiredMar 19, 92Feb 16, 93[F02C]
5024170 External combustor for gas turbine engineExpiredAug 31, 90Jun 18, 91[F23D]
4860534 Inlet particle separator with anti-icing meansExpiredAug 24, 88Aug 29, 89[F02G]
4859149 Blade locking systemExpiredMar 10, 89Aug 22, 89[F01D]
4826399 Unison ring mounting arrangementExpiredMay 06, 88May 02, 89[F01D]
4824628 Method of making an epoxy moldExpiredJan 20, 88Apr 25, 89[B29C]

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