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For the Inventor, By the Inventor

Phoenix, AZ, United States of America

Phelps Dodge Corporation


USPTO Granted Patents = 35

Forward Citations = 287

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42 inventors (with patents filed for the assignee):

goldMedal John O Marsden (21 out of 33 patents)

silverMedal Joanna M Robertson (17 out of 33 patents)

bronzeMedal David R Baughman (17 out of 35 patents)

4.  Wayne Werneke Hazen (17 out of 48 patents)

5.  Philip Thompson (16 out of 23 patents)

6.  Robert E Brewer (15 out of 20 patents)

7.  Christel M A Bemelmans (6 out of 9 patents)

8.  Roland Schmidt (6 out of 7 patents)

9.  Scot Philip Sandoval (6 out of 25 patents)

10.  Timothy George Robinson (6 out of 18 patents)

11.  Antonioni C Stevens (4 out of 9 patents)

12.  Stanley R Gilbert (4 out of 9 patents)

13.  Donald P Satchell, Jr (4 out of 37 patents)

14.  Jean-Louis Huens (3 out of 3 patents)

15.  Peter Peckham (3 out of 16 patents)


35 patents:

1. 7656311 - Position tracking and proximity warning system (2010-02-02),
2. 7517384 - Method for improving metals recovery using high temperature pressure leaching (2009-04-14),
3. 7494580 - System and method for producing copper powder by electrowinning using the ferrous/ferric anode reaction (2009-02-24),
4. 7485216 - Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction (2009-02-03),
5. 7476308 - Process for multiple stage direct electrowinning of copper (2009-01-13),
6. 7473413 - Method for recovering metal values from metal-containing materials using high temperature pressure leaching (2009-01-06),
7. 7462272 - Process for multiple stage direct electrowinning of copper (2008-12-09),
8. 7452455 - System and method for producing metal powder by electrowinning (2008-11-18),
9. 7431810 - Apparatus for controlling flow in an electrodeposition process (2008-10-07),
10. 7393438 - Apparatus for producing metal powder by electrowinning (2008-07-01),
11. 7378011 - Method and apparatus for electrowinning copper using the ferrous/ferric anode reaction (2008-05-27),
12. 7378010 - System and method for producing copper powder by electrowinning in a flow-through electrowinning cell (2008-05-27),
13. 7368049 - Method and apparatus for electrowinning copper using the ferrous/ferric anode reaction and a flow-through anode (2008-05-06),
14. 7341700 - Method for recovery of metals from metal-containing materials using medium temperature pressure leaching (2008-03-11),
15. 7125436 - Method for improving metals recovery using high temperature pressure leaching (2006-10-24),
Phelps Dodge Corporation is a leading global supplier of copper and copper products. With a history that dates back to 1834, Phelps Dodge has been involved in the mining, production, and distribution of copper for various industries worldwide. The company focuses on sustainable mining practices and has established itself as a trusted provider of high-quality copper products.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

35 Patents

#27 in Phoenix, AZ

#120 in Arizona

#9,423 in US

#18,611 in the World

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Phoenix, AZ, United States of America

Phelps Dodge Corporation

Forward Citations = 287

42 inventors:

goldMedal John O Marsden (21 out of 33 patents)

silverMedal Joanna M Robertson (17 out of 33 patents)

bronzeMedal David R Baughman (17 out of 35 patents)

4.  Wayne Werneke Hazen (17 out of 48 patents)

5.  Philip Thompson (16 out of 23 patents)

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