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For the Inventor, By the Inventor

PE

South American Placers, Inc.


USPTO Granted Patents = 2

Forward Citations = 10

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1 inventor (with patents filed for the assignee):

goldMedal Alfredo P Vargas (2 out of 3 patents)


2 patents:

1. 4650569 - Process for the selective separation of base metal sulfides and oxides (1987-03-17),
2. 4515688 - Process for the selective separation of base metal sulfides and oxides (1985-05-07),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#1 in

#5 in Peru

...
PE

South American Placers, Inc.

Forward Citations = 10

1 inventor:

goldMedal Alfredo P Vargas (2 out of 3 patents)

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