For the Inventor, By the Inventor

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Phoenix, AZ, United States of America

Phelphs Dodge Corporation

USPTO Granted Patents = 1

% Expired Patents = 100.0

Forward Citations = 14

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7 inventors (with patents filed for the assignee):

Joanna M Robertson (1 out of 33 patents)

David R Baughman (1 out of 35 patents)

John O Marsden (1 out of 33 patents)

4. Philip Thompson (1 out of 23 patents)

5. Roland Schmidt (1 out of 7 patents)

6. Robert E Brewer (1 out of 20 patents)

7. Wayne Werneke Hazen (1 out of 48 patents)

1 patent: Sort by Forward Citations

1. 6676909 - Method for recovery of metals from metal-containing materials using medium temperature pressure leaching (2004-01-13),

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USPTO Data Jan 1 1976 - Sep 29 2026

1 Patents

#498 in Phoenix, AZ

#1,981 in Arizona

#136,675 in US

Phoenix, AZ, United States of America

Phelphs Dodge Corporation

Forward Citations = 14

7 inventors:

Joanna M Robertson (1 out of 33 patents)

David R Baughman (1 out of 35 patents)

John O Marsden (1 out of 33 patents)

4. Philip Thompson (1 out of 23 patents)

5. Roland Schmidt (1 out of 7 patents)

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