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For the Inventor, By the Inventor

Vancouver, Canada

R & O Mining Processing Ltd.


USPTO Granted Patents = 1

Forward Citations = 13

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1 inventor (with patents filed for the assignee):

goldMedal Robert N O'Brien (1 out of 21 patents)


1 patent:

1. 5484579 - Hydrometallurical recovery of copper and zinc from complex sulfide ores (1996-01-16),
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USPTO Data Jan 1 1976 - Dec 23 2025

1 Patents

#558 in Vancouver

#9,173 in Canada

...
Vancouver, Canada

R & O Mining Processing Ltd.

Forward Citations = 13

1 inventor:

goldMedal Robert N O'Brien (1 out of 21 patents)

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