DG

Dennis T. Grendahl

📍 Lompoc, CA: #5 of 97 inventorsTop 6%
🗺 California: #293 of 10,592 inventorsTop 3%
Overall (1989): #11,178 of 140,708Top 8%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4798608 Laminated zone of focus artificial lens — 1989-01-17
4798609 Radially segmented zone of focus artificial lens — 1989-01-17
4795462 Cylindrically segmented zone of focus artificial lens — 1989-01-03