David Angell

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Fort Worth, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Modulating butterfly valve control
- Patent number 12,228,220
- Issue date Feb 18, 2025
- Textron Innovations Inc.
- David M. Angell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Modulating butterfly valve control
- Patent number 11,802,632
- Issue date Oct 31, 2023
- Textron Innovations Inc.
- David M. Angell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Floating ducts
- Patent number 10,823,289
- Issue date Nov 3, 2020
- Bell Helicopter Textron Inc.
- Keith David Weaver
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Passive gas-leak management system
- Patent number 10,718,225
- Issue date Jul 21, 2020
- Bell Helicopter Textron Inc.
- Keith David Weaver
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
Modulating Butterfly Valve Control
- Publication number 20240110638
- Publication date Apr 4, 2024
- TEXTRON INNOVATIONS INC.
- David M. Angell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Modulating Butterfly Valve Control
- Publication number 20220412481
- Publication date Dec 29, 2022
- Bell Textron Inc.
- David M. Angell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Passive Gas-Leak Management System
- Publication number 20190170005
- Publication date Jun 6, 2019
- BELL HELICOPTER TEXTRON INC.
- Keith David Weaver
- G01 - MEASURING TESTING
Information Patent Application
Floating Ducts
- Publication number 20190154154
- Publication date May 23, 2019
- BELL HELICOPTER TEXTRON INC.
- Keith David Weaver
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...