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Vancouver, Canada

Cominco, Ltd.

USPTO Granted Patents = 114

CIPO Patents = 2

Trademarks = 2

Forward Citations = 1,356

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147 inventors (with patents filed for the assignee):

Daniel A Boateng (12 out of 12 patents)

Godefridus M Swinkels (12 out of 13 patents)

Robert D Willans (7 out of 8 patents)

4. Clifford J Krauss (7 out of 7 patents)

5. Edward Francis Milner (6 out of 7 patents)

6. Roman M Genik-Sas-Berezowsky (6 out of 15 patents)

7. Robert C Kerby (6 out of 6 patents)

8. John V Marlow (5 out of 12 patents)

9. Eric L Mawer (5 out of 5 patents)

10. Donald L Ball (5 out of 5 patents)

11. Theodore J Seymour (5 out of 5 patents)

12. Ernest G Parker (5 out of 6 patents)

13. John T Higgins (5 out of 5 patents)

14. Robert E Manwell (4 out of 4 patents)

15. Horst E Hirsch (4 out of 5 patents)

Core Competencies:

Galvanizing

Bioleaching

Electrodeposition

Zinc Recovery

Sulfur Granulation

Metal Casting

Electrolyte Quality

Electrowinning

Flotation Processes

Cyanide Removal

Scrap Metal Recycling

Lead Refining

114 patents: Sort by Forward Citations

1. 6280795 - Galvanizing of reactive steels (2001-08-28),

2. 6228905 - Drop forming method and sulphur polymer concrete process (2001-05-08),

3. 6103204 - Selective bioleaching of zinc (2000-08-15),

4. 5976219 - Method and apparatus for recycling of scrap metal (1999-11-02),

5. 5896635 - Apparatus for forming expanded mesh (1999-04-27),

6. 5833830 - Redox control in the electrodeposition of metals (1998-11-10),

7. 5820335 - Apparatus for collecting plates (1998-10-13),

8. 5803949 - Fluidized bed roasting process (1998-09-08),

9. 5709731 - Slurry pipeline leaching method (1998-01-20),

10. 5601795 - Calomel (Hg.sub.2 Cl.sub.2) purification process (1997-02-11),

11. 5584978 - Collection electrode (collectrode) for geo-electrochemical sampling (1996-12-17),

12. 5565168 - Zinc-aluminum casting method (1996-10-15),

13. 5558756 - Method for geo-electrochemical sampling (1996-09-24),

14. 5531903 - Fluoride removal from metal sulphate solution and a method of waste (1996-07-02),

15. 5462109 - Method and apparatus for producing metal strip (1995-10-31),

Cominco, Ltd., headquartered in Vancouver, Canada, specializes in advanced metal recovery processes, focusing on sustainable and efficient methods for extracting valuable metals. The company is recognized for its expertise in galvanizing, bioleaching, and electrowinning, which are pivotal in the recovery of zinc and other metals. Cominco is also engaged in enhancing electrolyte quality and sulfur granulation, contributing to innovative solutions in metal casting and recovery, thereby supporting the industry's shift towards more environmentally friendly practices.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

114 Patents

#5 in Vancouver

#109 in Canada

#6,929 in the World

Vancouver, Canada

Cominco, Ltd.

Forward Citations = 1,356

147 inventors:

Daniel A Boateng (12 out of 12 patents)

Godefridus M Swinkels (12 out of 13 patents)

Robert D Willans (7 out of 8 patents)

4. Clifford J Krauss (7 out of 7 patents)

5. Edward Francis Milner (6 out of 7 patents)

Please report any incorrect information to [email protected]

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