Donald H. Davidson

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Bedford, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
In-situ method and apparatus for sparging gas bubbles
- Patent number 4,360,234
- Issue date Nov 23, 1982
- Kennecott Copper Corporation
- Limin Hsueh
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Well stimulation for solution mining
- Patent number 4,342,484
- Issue date Aug 3, 1982
- Kennecott Corporation
- Donald H. Davidson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for in situ minefields
- Patent number 4,125,289
- Issue date Nov 14, 1978
- Kennecott Copper Corporation
- Ray V. Huff
- E21 - EARTH DRILLING MINING
Information Patent Grant
In-situ mining method and apparatus
- Patent number 4,116,488
- Issue date Sep 26, 1978
- Kennecott Copper Corporation
- Limin Hsueh
- E21 - EARTH DRILLING MINING
Information Patent Grant
In-situ mining of copper and nickel
- Patent number 4,045,084
- Issue date Aug 30, 1977
- Kennecott Copper Corporation
- Limin Hsueh
- E21 - EARTH DRILLING MINING