Richard R. Dahlen

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White Bear Lake, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Energy control sheet having insulative properties
- Patent number 4,226,910
- Issue date Oct 7, 1980
- Minnesota Mining and Manufacturing Company
- Richard R. Dahlen
- B32 - LAYERED PRODUCTS
Information Patent Grant
Process for providing insulating covers
- Patent number 4,106,905
- Issue date Aug 15, 1978
- Minnesota Mining and Manufacturing Company
- Joseph J. Schmitt
- F28 - HEAT EXCHANGE IN GENERAL