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Richard C. Spung
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Crosby, TX, US
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last 30 patents
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Patent Grant
Process for removing heavy metals from aqueous solutions
Patent number
5,348,662
Issue date
Sep 20, 1994
Elf Atochem North America, Inc.
Jeffrey H. Yen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE