RD

Richard K. DeFreez

OC Oregon Graduate Center: 2 patents #1 of 11Top 10%
📍 Azalea, OR: #1 of 1 inventorsTop 100%
🗺 Oregon: #46 of 893 inventorsTop 6%
Overall (1989): #17,788 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4797892 Longitudinally coupled surface emitting semiconductor laser array Richard A. Elliott, Joseph Puretz 1989-01-10
4796269 Two-dimensional phase-locked surface emitting semiconductor laser array Richard A. Elliott, Joseph Puretz 1989-01-03