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Phoenix, AZ, United States of America

Phelps Dodge Corporation

USPTO Granted Patents = 35

% Expired Patents = 54.3

Forward Citations = 288

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42 inventors (with patents filed for the assignee):

John O Marsden (21 out of 33 patents)

Joanna M Robertson (17 out of 33 patents)

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)

Core Competencies:

Electrowinning

Copper Recovery

Pressure Leaching

Metal Powder

Hydrometallurgy

Flow Control

High Temperature

Sulfur Processing

Medium Temperature

Ferrous/Ferric Anode

Copper Powder

Metal Values

35 patents: Sort by Forward Citations

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),

Company Overview

Phelps Dodge Corporation is a prominent player in the mining and manufacturing sectors, specializing in the production of copper and other metals. The company is known for its innovative approaches in resource extraction and processing, contributing significantly to various industries, including construction and electronics. With a strong presence in North America, Phelps Dodge focuses on sustainable practices and advanced technologies to enhance operational efficiency and environmental stewardship in its operations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

35 Patents

#25 in Phoenix, AZ

#115 in Arizona

#9,749 in US

#19,168 in the World

Phoenix, AZ, United States of America

Phelps Dodge Corporation

Forward Citations = 288

42 inventors:

John O Marsden (21 out of 33 patents)

Joanna M Robertson (17 out of 33 patents)

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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Phelps Dodge Corporation. Retrieved from https://idiyas.com/company/phelps-dodge

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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