AL

Allan C. Lichtenberg

📍 Chicago, IL: #3,897 of 13,327 inventorsTop 30%
🗺 Illinois: #26,653 of 84,256 inventorsTop 35%
Overall (All Time): #1,633,259 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5894406 Elevated separate external keyboard apparatus for use with portable computer Michael L. Blend 1999-04-13
5336001 Maximum comfort keyboard 1994-08-09
D348877 Maximum comfort keyboard 1994-07-19