KS

Kay Steen

📍 Bothell, WA: #1,506 of 2,342 inventorsTop 65%
🗺 Washington: #48,111 of 76,902 inventorsTop 65%
Overall (All Time): #3,383,823 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7208069 Device for etching semiconductors with a large surface area Marc Christophersen, Jörg BAHR, Jürgen Carstensen, Georgi Popkirov, Helmut Foll 2007-04-24