Harold Switzgable

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Freehold, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for producing methane gas by processing waste materials
- Patent number 4,090,940
- Issue date May 23, 1978
- Alpha Systems Corporation
- Harold Switzgable
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for producing methane gas by processing waste materials
- Patent number 4,053,395
- Issue date Oct 11, 1977
- Alpha Systems Corporation
- Harold Switzgable
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE