DH

Duane B. Haagensen

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #2,345,848 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4714812 Apparatus and method for processing dielectric materials with microwave energy Darcy Moses, Leonard S. Smith 1987-12-22
4620593 Oil recovery system and method 1986-11-04