Robert D. Blythe

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Bethesda, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Sewage sludge treatment with gas injection
- Patent number 5,248,419
- Issue date Sep 28, 1993
- Long Enterprises
- Charles A. Long
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Sewage sludge treatment with gas injection
- Patent number 5,147,563
- Issue date Sep 15, 1992
- Long Enterprises, Inc.
- Charles A. Long
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE