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For the Inventor, By the Inventor

Vancouver, Canada

Cominco, Ltd.


USPTO Granted Patents = 114


Trademarks = 2

Forward Citations = 1,356

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147 inventors (with patents filed for the assignee):

goldMedal Godefridus M Swinkels (12 out of 13 patents)

silverMedal Daniel A Boateng (11 out of 12 patents)

bronzeMedal Robert D Willans (7 out of 8 patents)

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

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

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

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

8.  Eric L Mawer (5 out of 5 patents)

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

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

11.  Edward Francis Milner (5 out of 7 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:

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. is a multinational mining company specializing in zinc and lead production. With a history dating back to 1906, Cominco has grown to become one of the largest mining companies in the world. The company operates mines and smelters in various countries, and its products are used in diverse industries such as construction, automotive, and telecommunications.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

Cominco, Ltd.
114 Patents

#5 in Vancouver

#109 in Canada

#6,922 in the World

Vancouver, CA
Vancouver, Canada

Cominco, Ltd.

Forward Citations = 1,356

147 inventors:

goldMedal Godefridus M Swinkels (12 out of 13 patents)

silverMedal Daniel A Boateng (11 out of 12 patents)

bronzeMedal Robert D Willans (7 out of 8 patents)

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

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

Please report any incorrect information to [email protected]
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