DM

Douglas I. Morris

UI US Dept of the Interior: 1 patents #132 of 508Top 30%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,749,827 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5544973 Concrete step embankment protection Kathleen H. Frizell, Brent W. Mefford, Tracy B. Vermeyen 1996-08-13