48 Utility Patents
#6 in Lakewood, CO
#325 in Colorado
#21,813 in US
#40,923 in the World
Forward Citations = 314
Company Filing History:
Phelps Dodge Corporation
Freeport Minerals Corporation

4. 1 out of 399

5. 1 out of 43
Hazen Research, Inc.
where one patent can have more than one assignee
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