Phillip J. Steffen

Follow

Person

Avon, IN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Variable geometry hysteresis control for a gas turbine engine
- Patent number 8,079,221
- Issue date Dec 20, 2011
- Rolls-Royce Corporation
- Ray F. Bowman
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Variable geometry hysteresis control for a gas turbine engine
- Patent number 7,866,159
- Issue date Jan 11, 2011
- Rolls-Royce Corporation
- Ray F. Bowman
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...

Patents Applicationslast 30 patents

Information Patent Application
MULTI-MODAL GAS-TURBINE ENGINE STARTING
- Publication number 20250035049
- Publication date Jan 30, 2025
- Rolls-Royce Corporation
- Peter Schenk
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EMERGENCY START OF A GAS TURBINE ENGINE
- Publication number 20250035043
- Publication date Jan 30, 2025
- Rolls-Royce North American Technologies, Inc.
- Bradon Badger
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
VARIABLE GEOMETRY HYSTERESIS CONTROL FOR A GAS TURBINE ENGINE
- Publication number 20110167780
- Publication date Jul 14, 2011
- Ray F. Bowman
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Application
Variable geometry hysteresis control for a gas turbine engine
- Publication number 20070084211
- Publication date Apr 19, 2007
- Rolls-Royce Corporation
- Ray F. Bowman
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...