DC

David H. Cowden

3M: 1 patents #7,233 of 11,543Top 65%
Overall (All Time): #1,519,118 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9032732 High efficiency OTEC service station Era W. Cowden 2015-05-19
8572967 High efficiency OTEC system Era W. Cowden 2013-11-05
6026210 Fiber optic connector spring Sidney J. Berglund, Donald G. Doss 2000-02-15