KEVIN WORRELL

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Arlington, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-ratio rotorcraft drive system and a method of changing gear r...
- Patent number 8,500,597
- Issue date Aug 6, 2013
- Bell Helicopter TEXTRON Inc.
- Ryan T Ehinger
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Multi-ratio rotorcraft drive system and a method of changing gear r...
- Patent number 8,454,475
- Issue date Jun 4, 2013
- Bell Helicopter TEXTRON Inc.
- Ryan T Ehinger
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Multi-ratio rotorcraft drive system and a method of changing gear r...
- Patent number 8,449,432
- Issue date May 28, 2013
- Bell Helicopter TEXTRON Inc.
- Ryan T Ehinger
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Multi-ratio rotorcraft drive system and a method of changing gear r...
- Patent number 8,133,155
- Issue date Mar 13, 2012
- Bell Helicopter TEXTRON Inc.
- Ryan T. Ehinger
- B64 - AIRCRAFT AVIATION COSMONAUTICS

Patents Applicationslast 30 patents

Information Patent Application
MULTI-RATIO ROTORCRAFT DRIVE SYSTEM AND A METHOD OF CHANGING GEAR R...
- Publication number 20120214642
- Publication date Aug 23, 2012
- Bell Helicopter Textron Inc.
- RYAN T. EHINGER
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
MULTI-RATIO ROTORCRAFT DRIVE SYSTEM AND A METHOD OF CHANGING GEAR R...
- Publication number 20120208673
- Publication date Aug 16, 2012
- Bell Helicopter Textron Inc.
- RYAN T. EHINGER
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
MULTI-RATIO ROTORCRAFT DRIVE SYSTEM AND A METHOD OF CHANGING GEAR R...
- Publication number 20120208670
- Publication date Aug 16, 2012
- Bell Helicopter Textron Inc.
- RYAN T. EHINGER
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
MULTI-RATIO ROTORCRAFT DRIVE SYSTEM AND A METHOD OF CHANGING GEAR R...
- Publication number 20110015034
- Publication date Jan 20, 2011
- Bell Helicopter Textron Inc.
- RYAN T. EHINGER
- B64 - AIRCRAFT AVIATION COSMONAUTICS