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Jeffrey J. Chen
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Pittsburgh, PA, US
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last 30 patents
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Patent Grant
Apparatus for the treatment of wastewater
Patent number
4,179,374
Issue date
Dec 18, 1979
Dravo Corporation
Elton S. Savage
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Patent Grant
Gas removal from deep-bed filters
Patent number
3,970,555
Issue date
Jul 20, 1976
Dravo Corporation
Elton Stuart Savage
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL