DS

Douglas R. Siefken

📍 Chicago, IL: #5,168 of 13,327 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,203,545 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6580466 Methods for generating image set or series with imperceptibly different images, systems therefor and applications thereof 2003-06-17
6433839 Methods for generating image set or series with imperceptibly different images, systems therefor and applications thereof 2002-08-13