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For the Inventor, By the Inventor

London, United Kingdom

De Beers UK Ltd


USPTO Granted Patents = 25



Trademarks = 73

Forward Citations = 74

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16 inventors (with patents filed for the assignee):

goldMedal James Gordon Charters Smith (9 out of 13 patents)

silverMedal Federica Imperiali (8 out of 8 patents)

bronzeMedal Colin McGuinness (4 out of 4 patents)

4.  David Fisher (4 out of 4 patents)

5.  Peter Stanley Rose (4 out of 4 patents)

6.  Nicholas Matthew Davies (3 out of 4 patents)

7.  Qi He Hong (3 out of 3 patents)

8.  Siobhan D'Gama (2 out of 3 patents)

9.  Maxwell Ralph Willis (2 out of 2 patents)

10.  Graham Ralph Powell (2 out of 4 patents)

11.  Michael Peter Gaukroger (2 out of 7 patents)

12.  Andrew John Portsmouth (2 out of 2 patents)

13.  Timothy Howard Leaton (1 out of 1 patent)

14.  Alistair Fitch (1 out of 4 patents)

15.  Philip Harris (1 out of 1 patent)


25 patents:

1. 12354384 - Re-identification of rough gemstones (2025-07-08),
2. 12194504 - Melee gemstone sorting (2025-01-14),
3. 12117403 - Gemstone planning (2024-10-15),
4. 11893809 - Re-identification of rough gemstones (2024-02-06),
5. D1011953 - Earring (2024-01-23),
6. D1011952 - Earring (2024-01-23),
7. D993072 - Pendant (2023-07-25),
8. D993071 - Pendant (2023-07-25),
9. D993069 - Ring (2023-07-25),
10. D986093 - Ring (2023-05-16),
11. D986092 - Bangle (2023-05-16),
12. D986091 - Bangle (2023-05-16),
13. 11541429 - Gemstone sorting (2023-01-03),
14. 11020771 - Apparatus for sorting gemstones (2021-06-01),
15. 10393669 - Colour measurement of gemstones (2019-08-27),
De Beers UK Ltd is a leading diamond company specializing in diamond mining, exploration, and retail. With a rich heritage dating back to 1888, De Beers is known for producing some of the world's most exquisite diamonds. Headquartered in London, UK, De Beers operates mines in various countries and has a strong presence in the global diamond industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 13 2026

25 Patents

#126 in London

#703 in United Kingdom

#24,992 in the World

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London, United Kingdom

De Beers UK Ltd

Forward Citations = 74

16 inventors:

goldMedal James Gordon Charters Smith (9 out of 13 patents)

silverMedal Federica Imperiali (8 out of 8 patents)

bronzeMedal Colin McGuinness (4 out of 4 patents)

4.  David Fisher (4 out of 4 patents)

5.  Peter Stanley Rose (4 out of 4 patents)

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