Inventor
CULLEN JOHN J A
GB17 patents
⚠️ This page may combine multiple inventors who share the name “CULLEN JOHN J A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROLLS ROYCE PLC
11 patentsUS6794781B2Sep 21, 2004
Compact electrical machine
ROLLS ROYCE PLC177 citations98
US6765328B2Jul 20, 2004
Shaft bearings
ROLLS ROYCE PLC10 citations73
US10485145B2Nov 19, 2019
Cooling system for electrical equipment
ROLLS ROYCE PLC4 citations72
US6888439B2May 3, 2005
Electrical conductor winding and a method of manufacturing an electrical conductor winding
ROLLS ROYCE PLC7 citations70
US8350656B2Jan 8, 2013
Rotary transformer
ROLLS ROYCE PLC5 citations67
US7372676B2May 13, 2008
Motor coil-shorting detecting unit
ROLLS ROYCE PLC7 citations65
US7554301B2Jun 30, 2009
Fault current limiting in an electrical power network
ROLLS ROYCE PLC4 citations62
US7521901B2Apr 21, 2009
Electrical power stabilisation
ROLLS ROYCE PLC2 citations62
US6680667B2Jan 20, 2004
Electrical conductor winding and a method of manufacturing an electrical conductor winding
ROLLS ROYCE PLC3 citations59
US10951101B2Mar 16, 2021
Induction motor rotor and a method of manufacturing the same
ROLLS ROYCE PLC0 citations44
US10680503B2Jun 9, 2020
Active screening for an electrical machine
ROLLS ROYCE PLC0 citations40
CULLEN JOHN J A
4 patentsUS8653797B2Feb 18, 2014
Synchronous electrical machine
CULLEN JOHN J A6 citations66
US8648575B2Feb 11, 2014
Electrical machine safety system
CULLEN JOHN J A2 citations59
US9236830B2Jan 12, 2016
Electrical machine
CULLEN JOHN J A0 citations39
US9018805B2Apr 28, 2015
Superconducting machines
CULLEN JOHN J A0 citations39