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Toronto, Canada

Noranda Mines Limited

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USPTO Granted Patents = 51

Trademarks = 1

Forward Citations = 604

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54 inventors (with patents filed for the assignee):

Rodney L LeRoy (6 out of 11 patents)

Frank Kitzinger (5 out of 14 patents)

Pierre L Claessens (5 out of 9 patents)

4. Frank R Rosenblum (5 out of 6 patents)

5. Robert W Stanley (4 out of 6 patents)

6. Albert Pelletier (3 out of 5 patents)

7. George C McKerrow (3 out of 3 patents)

8. Raouf O Loutfy (3 out of 3 patents)

9. Serge Monette (2 out of 7 patents)

10. Jean C Farge (2 out of 4 patents)

11. John G Peacey (2 out of 11 patents)

12. Derek G Kerfoot (2 out of 9 patents)

13. Nanabhai R Bharucha (2 out of 2 patents)

14. Derek G Kerfoot (2 out of 2 patents)

15. Mohammad Barakat Janjua (2 out of 2 patents)

Core Competencies:

Electrowinning

Hydrometallurgy

Waste Treatment

Copper Recovery

Cobalt Dissolution

Slag Treatment

Oxygen Monitoring

Fluidized Bed Reactor

Corrosion Inhibition

Plasma Reactor

Copper Concentrates

Density Measurement

51 patents: Sort by Forward Citations

1. 4474656 - Method of controlling the potential of electrically-floating components (1984-10-02),

2. 4470907 - Continuous polymer feed system for a waste water treatment plant (1984-09-11),

3. 4466824 - Transferred-arc plasma reactor for chemical and metallurgical (1984-08-21),

4. 4462575 - Hood assembly for a metallurgical converter (1984-07-31),

5. 4457897 - Process for the selective dissolution of cobalt from cobaltite-pyrite (1984-07-03),

6. 4404022 - Dore slag treatment (1983-09-13),

7. 4402359 - Heat transfer device having an augmented wall surface (1983-09-06),

8. 4382778 - Method and apparatus for reducing excess air inleakage into an open (1983-05-10),

9. 4376010 - Spray drying with a plasma of superheated steam (1983-03-08),

10. 4338168 - Hydrometallurgical treatment of copper-bearing hematite residue (1982-07-06),

11. 4338128 - Low alloy white cast iron (1982-07-06),

12. 4307609 - Liquid density meter (1981-12-29),

13. 4294274 - Hydrogen injection into gas pipelines and other pressurized containers (1981-10-13),

14. 4281290 - Voltage monitor (1981-07-28),

15. 4225402 - Method for heavy-water extraction from non-electrolytic hydrogen streams (1980-09-30),

Company Overview

Noranda Mines Limited, based in Toronto, specializes in advanced metallurgical processes, focusing on the extraction and recovery of valuable metals. The company is recognized for its expertise in electrowinning and hydrometallurgy, which are critical for efficient copper and cobalt recovery. Additionally, Noranda is involved in waste treatment and slag treatment technologies, enhancing sustainability in metal processing. Their innovative approaches, including oxygen monitoring and the use of fluidized bed reactors, position them as a leader in the metallurgical field.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

51 Patents

#28 in Toronto

#274 in Canada

#13,788 in the World

Toronto, Canada

Noranda Mines Limited

Forward Citations = 604

54 inventors:

Rodney L LeRoy (6 out of 11 patents)

Frank Kitzinger (5 out of 14 patents)

Pierre L Claessens (5 out of 9 patents)

4. Frank R Rosenblum (5 out of 6 patents)

5. Robert W Stanley (4 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Noranda Mines Limited. Retrieved from https://idiyas.com/company/noranda-mines

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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