ROLLS-ROYCE POWER ENGINEERING PLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G21C NUCLEAR REACTORS 538
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 4103
 
  
 
G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 258
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192
 
  
 
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
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 169
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 122
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 144

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0106,473 PRESSURE VESSELOct 07, 16Apr 20, 17[B23K, G21C]
2016/0109,185 ENERGY STORAGE SYSTEMSep 28, 15Apr 21, 16[F28D, G21C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9804286 Method of optimising the output of a sensor for indicating the relative location of a mettalic objectJun 09, 15Oct 31, 17[G21C, G01D, G01V]
8890377 Mounting arrangement for an electrical machineMar 24, 11Nov 18, 14[H02K]
8302405 Dynamic control of a gas turbine engine compressor during rapid transientsOct 15, 07Nov 06, 12[F02C]
7722316 Acoustic viscous damper for centrifugal gas compressorSep 13, 06May 25, 10[F04D]
5973436 Electrical machineJul 30, 97Oct 26, 99[H02K]
5886449 Electrical machineAug 08, 96Mar 23, 99[H02K]
5877578 Rotor disc construction for use in an electrical machineDec 06, 96Mar 02, 99[H02K]
5618115 Method of operating a rotating assemblyNov 24, 95Apr 08, 97[F16C]
5572039 Method and apparatus for observing a gapAug 15, 94Nov 05, 96[G01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0109,189 HEAT EXCHANGERAbandonedSep 28, 15Apr 21, 16[F28F]
2015/0369,584 SENSORAbandonedJun 09, 15Dec 24, 15[G01B]
2011/0194,906 MACHINE TOOLAbandonedAug 31, 09Aug 11, 11[B23Q]
6130523 Generator transfer function regulatorExpiredSep 24, 99Oct 10, 00[H02P]
6012280 Reciprocating engineExpiredMay 30, 97Jan 11, 00[F02G]
5939996 Display sign and an optical element for use in the sameExpiredMar 06, 97Aug 17, 99[G08B]
5934761 Boring machine having hydrostatic bearingsExpiredJun 13, 97Aug 10, 99[F16C, E21C]
5560714 Bearing AssemblyExpiredAug 25, 95Oct 01, 96[F16C]
5483906 Relating to solid fuel burnersExpiredOct 21, 94Jan 16, 96[F23D]
5464344 Low NO.sub.x air and fuel/air nozzle assemblyExpiredJun 29, 94Nov 07, 95[F23M]

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