John L. Featherstone

MHMidamerican Energy Holdings: 1 patents #1 of 2Top 50%

El Centro, CA: #1 of 3 inventorsTop 35%

California: #8,555 of 28,370 inventorsTop 35%

Overall (2004): #191,573 of 270,089Top 75%

1 Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6682644	Process for producing electrolytic manganese dioxide from geothermal brines	George Furmanski	2004-01-27