DE BEERS INDUSTRIAL DIAMONDS (PROPRIETARY) LIMITED
Patent Applications and Registrations
Patent applications and USPTO patent grants for DE BEERS INDUSTRIAL DIAMONDS (PROPRIETARY) LIMITED.The latest application filed is for "composite diamond compacts".
- DE BEERS INDUSTRIAL DIAMONDS (PROPRIETARY) LIMITED - Johannesburg ZA
| Patent | Date |
|---|---|
| Composite diamond compacts App 20050155295 - Tank, Klaus | 2005-07-21 |
| Thick single crystal diamond layer method for making it and gemstones produced from the layer App 20040182308 - Scarsbrook, Geoffrey Alan ; et al. | 2004-09-23 |
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