David L. Walker

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Portland, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods of forming an oxide layer on a metal body
- Patent number 10,865,468
- Issue date Dec 15, 2020
- Avalign Technologies, Inc.
- David L. Walker
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Methods of preparing a surface of a cast zirconium alloy substrate...
- Patent number 9,404,173
- Issue date Aug 2, 2016
- David L Walker
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
METHODS OF FORMING AN OXIDE LAYER ON A METAL BODY
- Publication number 20160305005
- Publication date Oct 20, 2016
- David L. Walker
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHODS OF PREPARING A SURFACE OF A CAST ZIRCONIUM ALLOY SUBSTRATE...
- Publication number 20150107721
- Publication date Apr 23, 2015
- David L. Walker
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...