Ilmer Issac Niemi

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Cloquet, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Ballasted floating barrier boom
- Patent number 4,129,989
- Issue date Dec 19, 1978
- Conwed Corporation
- Ilmer I. Niemi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Sorbent boom with flotation and apparatus and method for stuffing same
- Patent number 4,099,619
- Issue date Jul 11, 1978
- Conwed Corporation
- Charles William Hudler
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING