DF

Doug Ferreira

JM Johns Manville: 1 patents #103 of 182Top 60%
📍 Artois, CA: #1 of 4 inventorsTop 25%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,558,147 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6453703 Spinner disc and rotary fiberization process Walter A. Johnson, Gerard DEMOTT, Yifang Cal 2002-09-24