Douglas S. Chisholm

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Midland, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Atomization of molten metals
- Patent number 4,238,427
- Issue date Dec 9, 1980
- Douglas S. Chisholm
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Centrifugal extrusion apparatus which heat plastifies material by m...
- Patent number 4,050,874
- Issue date Sep 27, 1977
- The Dow Chemical Company
- Douglas S. Chisholm
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for scrapless forming of plastic articles
- Patent number 4,014,965
- Issue date Mar 29, 1977
- The Dow Chemical Company
- Steven H. Stube
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for the preparation of plastic lined pipe
- Patent number 3,959,424
- Issue date May 25, 1976
- The Dow Chemical Company
- David H. Dawson
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL