John L. Featherstone

MHMidamerican Energy Holdings: 1 patents #1 of 1Top 100%

El Centro, CA: #1 of 2 inventorsTop 50%

California: #8,284 of 26,763 inventorsTop 35%

Overall (2002): #188,946 of 266,432Top 75%

1 Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6458184	Recovery of zinc from geothermal brines	—	2002-10-01