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For the Inventor, By the Inventor

Toronto, Canada

Noranda Mines Limited


USPTO Granted Patents = 51

Trademarks = 1

Forward Citations = 595

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54 inventors (with patents filed for the assignee):

goldMedal Rodney L LeRoy (6 out of 11 patents)

silverMedal Frank Kitzinger (5 out of 14 patents)

bronzeMedal 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 Metal
Hydrometallurgical Treatment
Plasma Reactor
Copper Recovery
Arsenic Removal
Continuous Smelting
Oxygen Monitoring
Corrosion Inhibition
Fluidized Bed Reactor
Waste Water Treatment
Electrochemical Applications
Density Measurement

51 patents:

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),
Noranda Mines Limited is a resource exploration and development company focused on acquiring and developing mineral properties. With a diverse portfolio of mining interests, Noranda mines and produces a range of commodities including copper, gold, zinc, and lead. The company is committed to sustainable and responsible mining practices, while creating long-term value for its stakeholders.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

51 Patents

#25 in Toronto

#260 in Canada

#13,364 in the World

...
Toronto, Canada

Noranda Mines Limited

Forward Citations = 595

54 inventors:

goldMedal Rodney L LeRoy (6 out of 11 patents)

silverMedal Frank Kitzinger (5 out of 14 patents)

bronzeMedal 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)

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