DC

David Drake Callahan

ME Murray Equipment: 1 patents #3 of 10Top 30%
📍 Rochester, IN: #16 of 46 inventorsTop 35%
🗺 Indiana: #13,671 of 33,936 inventorsTop 45%
Overall (All Time): #2,228,551 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6259972 Method for processing and disseminating utility outage information Zarko Sumic, Lance Nelson 2001-07-10
5183147 Chemical handling system Craig Reese, Douglas P. Baxter, Stephen M. Murray 1993-02-02