Rolls-Royce Incorporated

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS173
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS149

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5791872 Blade tip clearence control apparatusApr 22, 97Aug 11, 98[F04D]
5358262 Multi-layer seal memberOct 09, 92Oct 25, 94[F16J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5497616 High temperature mounting for stress relief of a dovetailExpiredNov 16, 94Mar 12, 96[F02K]
5485958 Mechanism for operating a cascade of variable pitch vanesExpiredJun 06, 94Jan 23, 96[B64C]
5390877 Vectorable nozzle for aircraftExpiredJun 25, 93Feb 21, 95[B64C]
5323606 Stowable nozzleExpiredFeb 23, 93Jun 28, 94[F02C]
5297388 Fluid flow duct with alternative outletsExpiredApr 13, 92Mar 29, 94[F02K]
5235807 Fluid flow arrangementExpiredJun 24, 92Aug 17, 93[F02K]
5103638 Mounting arrangementExpiredJan 29, 90Apr 14, 92[F02K]
5090198 Mounting assemblyExpiredMay 04, 90Feb 25, 92[F02K]
5022805 Cantilever mounting system for structural members having dissimilar coefficients of thermal expansionExpiredFeb 16, 89Jun 11, 91[F02K, F16B]
5011195 Constant volume connectorExpiredDec 18, 89Apr 30, 91[F16L]
5011626 Barrier materials for laser drillingExpiredJun 13, 88Apr 30, 91[F21V, B23K, B01F]
4984741 Vectorable variable flow area propulsion nozzleExpiredJun 01, 88Jan 15, 91[B63H]
4964564 Rotating or moving metal components and methods of manufacturing such componentsExpiredAug 26, 88Oct 23, 90[B23P, B21K, B23K, F02C]
4881314 Method of explosively forming a multilayered composite materialExpiredSep 23, 88Nov 21, 89[B23P, B23K]
4873414 Laser drilling of componentsExpiredJun 13, 88Oct 10, 89[B23K]
4864844 Method and apparatus for evaluating condensation amountExpiredDec 23, 86Sep 12, 89[G01N]
4840329 Aircraft with stowable vectorable nozzle and ejector thrust augmentationExpiredDec 14, 87Jun 20, 89[B64D]
4805840 Thrust deflectors for propulsion nozzles of turbomachinesExpiredApr 14, 86Feb 21, 89[F02K]
4739932 Propulsion nozzle for gas turbine engineExpiredSep 18, 86Apr 26, 88[B64C]
4732324 Variable flow area nozzleExpiredDec 19, 84Mar 22, 88[B63H]

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