Maynard C. Isheim

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Menlo Park, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sludge drying system with sand recycle
- Patent number 4,248,164
- Issue date Feb 3, 1981
- Envirotech Corporation
- Maynard C. Isheim
- F26 - DRYING
Information Patent Grant
Rotary sludge drying system with sand recycle
- Patent number 4,153,411
- Issue date May 8, 1979
- Envirotech Corporation
- Maynard C. Isheim
- F26 - DRYING