Rolls Royce, Limited

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B64C AEROPLANES; HELICOPTERS 266
 
 
 
F02K JET-PROPULSION PLANTS 236
 
 
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 160
 
 
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 1194

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7823826 VSTOL aircraftNov 04, 81Nov 02, 10[B64C]
7823838 Aircraft with improved liftNov 23, 81Nov 02, 10[B64D, B64C]
6070407 Ducted fan gas turbine engine with variable area fan duct nozzleNov 22, 96Jun 06, 00[F02K]
5970705 Variable configuration final nozzle assembly for a combined rocket/ramjet engineAug 15, 80Oct 26, 99[F02K, B05B]
5081686 Personal handwriting verificationMar 25, 91Jan 14, 92[G06K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5463863 Fuel control systemExpiredSep 19, 84Nov 07, 95[F02C]
5273213 Variable area nozzle for turbomachinesExpiredFeb 23, 82Dec 28, 93[F02K]
5269466 Gas turbine engine including a variable area nozzleExpiredJan 28, 83Dec 14, 93[B64C]
5267831 Axial flow gas turbinesExpiredJan 18, 84Dec 07, 93[F02C]
5207787 Variable area nozzleExpiredFeb 23, 82May 04, 93[B05B]
5201634 Cooled aerofoil bladeExpiredMar 19, 82Apr 13, 93[F01D]
5181827 Gas turbine engine shroud ring mountingExpiredNov 30, 82Jan 26, 93[F01D]
5178514 Cooling of gas turbine shroud ringsExpiredApr 30, 84Jan 12, 93[F01B]
5152059 Manufacture of cooled aerofoil bladesExpiredJul 16, 81Oct 06, 92[B21C]
5151012 Liquid cooled aerofoil bladeExpiredFeb 02, 82Sep 29, 92[B63H]
5141159 Variable area nozzles for turbomachinesExpiredJun 23, 82Aug 25, 92[F02K]
5137419 Axial flow compressor surge margin improvementExpiredJun 06, 85Aug 11, 92[F04D]
5107675 Gas turbine engineExpiredSep 12, 83Apr 28, 92[F02K]
5029219 Personal handwriting verificationExpiredApr 23, 85Jul 02, 91[G06K]
4979363 Diverter valve with bypass duct obturatorExpiredNov 15, 85Dec 25, 90[F02K]
4955565 Low drag surfaceExpiredSep 20, 84Sep 11, 90[B64C]
4826645 Method of making an integral bladed memberExpiredJun 05, 85May 02, 89[B29C]
4798514 Nozzle guide vane structure for a gas turbine engineExpiredJun 24, 80Jan 17, 89[F01D]
4786347 Method of manufacturing an annular bladed member having an integral shroudExpiredJun 05, 85Nov 22, 88[B65H]
4780832 Radiation probe and method of useExpiredAug 22, 85Oct 25, 88[G06F]

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