DG

Donald E. Griffey

ZE Zenith Electronics: 2 patents #7 of 71Top 10%
📍 Skokie, IL: #5 of 36 inventorsTop 15%
🗺 Illinois: #289 of 3,813 inventorsTop 8%
Overall (1989): #28,879 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4855864 High voltage shutdown circuit with brightness tracking — 1989-08-08
4820959 Projection CRT protection circuit — 1989-04-11