Gold alloy compositions formed by environmentally friendly process
US8419867B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Aug 15, 2008 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Aug 15, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44C27/003
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Rose-color and yellow-color gold alloys are formed from a gold-base alloy containing silver and copper. Mining these elements is usually highly detrimental to the environmental. Environmentally friendly alloys are obtained through the use of recycled elements and elements recovered from mines utilizing specific guidelines. Jewelry manufactured from these environmentally friendly alloys may be more receptive to a consumer, resulting in a competitive advantage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.