Andrew Griffiths

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Ridgewood, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for the leaching of gold and silver with cyanidic leaching...
- Patent number 5,275,791
- Issue date Jan 4, 1994
- Degussa Aktiengesellschaft
- Helmut Knorre
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the removal of cyanide from wastewaters
- Patent number 4,966,715
- Issue date Oct 30, 1990
- Degussa Aktiengesellschaft
- M. Quamrul Ahsan
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for the treatment of effluents containing cyanide and other...
- Patent number 4,915,849
- Issue date Apr 10, 1990
- Degussa Aktiegesellschaft
- Andrew Griffiths
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the detoxification of effluents from ore processing ope...
- Patent number 4,851,129
- Issue date Jul 25, 1989
- Degussa Aktiengesellschaft
- Andrew Griffiths
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the treatment of effluent containing cyanide and toxic...
- Patent number 4,822,496
- Issue date Apr 18, 1989
- Degussa Aktiengesellschaft
- Andrew Griffiths
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE