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Sherritt International Corporation

USPTO Granted Patents = 10

CIPO Patents = 22

EPO Patents = 2

Trademarks = 1

Forward Citations = 8

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27 inventors (with patents filed for the assignee):

Preston Carl Holloway (4 out of 5 patents)

Gavin Kerry Wyllie Freeman (3 out of 3 patents)

Jan Tjeerd Smit (2 out of 2 patents)

4. Michael J Collins (2 out of 10 patents)

5. Roman Berezowsky (1 out of 4 patents)

6. Kelvin Richard Buban (1 out of 1 patent)

7. Fu Qin (1 out of 1 patent)

8. Mohammad Reza Malek Abbaslou (1 out of 1 patent)

9. Ali Abbaspour Gharamalek (1 out of 1 patent)

10. Iftikhar Huq (1 out of 1 patent)

11. John Henry Marsh (1 out of 1 patent)

12. John Stiksma (1 out of 6 patents)

13. Ockert Gerbrandt Pauw (1 out of 1 patent)

14. James John Budac (1 out of 1 patent)

15. Aysan Molaei (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 12286686 - Co-processing of copper sulphide concentrate with nickel laterite ore (2025-04-29),

2. 11584975 - Integrated pressure oxidative leach of copper sulphidic feed with copper heap leach (2023-02-21),

3. 11118244 - Low acidity, low solids pressure oxidative leaching of sulphidic feeds (2021-09-14),

4. 10544482 - Recovery of copper from arsenic-containing process feed (2020-01-28),

5. 10449607 - Hydrogen reduction of metal sulphate solutions for decreased silicon in metal powder (2019-10-22),

6. 10358610 - Process for partial upgrading of heavy oil (2019-07-23),

7. 8221710 - Recovering metals from complex metal sulfides (2012-07-17),

8. 6949232 - Producing cobalt (III) hexammine sulfate from nickel cobalt sulfides (2005-09-27),

9. 6267800 - Process for producing cobalt metal powder from nickel-cobalt sulphides (2001-07-31),

10. 6264904 - Process for recovery of cobalt by selective precipitation of cobalt-calcium double salt (2001-07-24),

Sherritt International Corporation is a diversified natural resource company that produces nickel, cobalt, oil, and electricity. With operations in Canada, Cuba, and Madagascar, Sherritt is a global leader in the mining and energy sectors.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

10 Patents

#5 in Fort

#1,465 in Canada

#54,238 in the World

Sherritt International Corporation

Forward Citations = 8

27 inventors:

Preston Carl Holloway (4 out of 5 patents)

Gavin Kerry Wyllie Freeman (3 out of 3 patents)

Jan Tjeerd Smit (2 out of 2 patents)

4. Michael J Collins (2 out of 10 patents)

5. Roman Berezowsky (1 out of 4 patents)

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